Date: Mon, 21 Nov 2022 18:19:16 +0100 From: Mateusz Piotrowski <0mp@FreeBSD.org> To: freebsd-dtrace@freebsd.org Subject: In DTrace, why does timestamp increase after a call to chill() but vtimestamp and walltimestamp do not? Message-ID: <F2030DBF-E15F-40BB-90D8-394EF6331FDC@FreeBSD.org>
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[-- Attachment #1 --]
Hello all,
I'd like to understand why calling chill() in a DTrace action block increases the timestampvariable, but not vtimestamp and walltimestamp.
Here's an example showing timestamp increasing after a call to chill():
# dtrace -w -c true -n 'pid$target:::entry {self->t = $1; chill(1); printf("%d\n", $1 - self->t);}' timestamp
dtrace: description 'pid$target:::entry ' matched 3082 probes
dtrace: allowing destructive actions
dtrace: pid 6734 has exited
CPU ID FUNCTION:NAME
5 83475 _r_debug_postinit:entry 11258
5 85771 atexit:entry 2218
5 86468 __libc_atexit:entry 491
5 86428 exit:entry 441
5 85397 __cxa_thread_call_dtors:entry 441
5 86213 __cxa_finalize:entry 447
5 86213 __cxa_finalize:entry 565
5 83470 _rtld_addr_phdr:entry 454
5 86213 __cxa_finalize:entry 431
5 83470 _rtld_addr_phdr:entry 1645
5 84405 _exit:entry 432
If we run the same script but use walltimestamp (or vtimestamp), we'll see the counter did not increase:
# dtrace -w -c true -n 'pid$target:::entry {self->t = $1; chill(1); printf("%d\n", $1 - self->t);}' walltimestamp
dtrace: description 'pid$target:::entry ' matched 3082 probes
dtrace: allowing destructive actions
dtrace: pid 6707 has exited
CPU ID FUNCTION:NAME
4 83475 _r_debug_postinit:entry 0
4 85771 atexit:entry 0
4 86468 __libc_atexit:entry 0
4 86428 exit:entry 0
4 85397 __cxa_thread_call_dtors:entry 0
4 86213 __cxa_finalize:entry 0
4 86213 __cxa_finalize:entry 0
4 83470 _rtld_addr_phdr:entry 0
4 86213 __cxa_finalize:entry 0
4 83470 _rtld_addr_phdr:entry 0
4 84405 _exit:entry 0
This is understandable for vtimestamp, as it does not increase when executing DTrace code, but I don't understand walltimestamp's behavior here.
I'm running FreeBSD 13.1-RELEASE-p1 here on amd64.
Best,
Mateusz
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<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class="">Hello all,</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""><br class=""></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class="">I'd like to understand why calling chill() in a DTrace action block increases the timestampvariable, but not vtimestamp and walltimestamp.</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class="">Here's an example showing timestamp increasing after a call to chill():</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""><br class=""></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> # dtrace -w -c true -n 'pid$target:::entry {self->t = $1; chill(1); printf("%d\n", $1 - self->t);}' timestamp</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> dtrace: description 'pid$target:::entry ' matched 3082 probes</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> dtrace: allowing destructive actions</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> dtrace: pid 6734 has exited</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> CPU ID FUNCTION:NAME</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 5 83475 _r_debug_postinit:entry 11258</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 5 85771 atexit:entry 2218</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 5 86468 __libc_atexit:entry 491</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 5 86428 exit:entry 441</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 5 85397 __cxa_thread_call_dtors:entry 441</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 5 86213 __cxa_finalize:entry 447</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 5 86213 __cxa_finalize:entry 565</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 5 83470 _rtld_addr_phdr:entry 454</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 5 86213 __cxa_finalize:entry 431</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 5 83470 _rtld_addr_phdr:entry 1645</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 5 84405 _exit:entry 432</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""><br class=""></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class="">If we run the same script but use walltimestamp (or vtimestamp), we'll see the counter did not increase:</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""><br class=""></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> # dtrace -w -c true -n 'pid$target:::entry {self->t = $1; chill(1); printf("%d\n", $1 - self->t);}' walltimestamp</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> dtrace: description 'pid$target:::entry ' matched 3082 probes</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> dtrace: allowing destructive actions</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> dtrace: pid 6707 has exited</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> CPU ID FUNCTION:NAME</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 4 83475 _r_debug_postinit:entry 0</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 4 85771 atexit:entry 0</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 4 86468 __libc_atexit:entry 0</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 4 86428 exit:entry 0</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 4 85397 __cxa_thread_call_dtors:entry 0</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 4 86213 __cxa_finalize:entry 0</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 4 86213 __cxa_finalize:entry 0</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 4 83470 _rtld_addr_phdr:entry 0</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 4 86213 __cxa_finalize:entry 0</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 4 83470 _rtld_addr_phdr:entry 0</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> </span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""> 4 84405 _exit:entry 0</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""><br class=""></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class="">This is understandable for vtimestamp, as it does not increase when executing DTrace code, but I don't understand walltimestamp's behavior here.</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""><br class=""></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class="">I'm running FreeBSD 13.1-RELEASE-p1 here on amd64.</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class=""><br class=""></span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class="">Best,</span></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; clear: both;" class=""><font color="#232629" face="-apple-system, BlinkMacSystemFont, Segoe UI Adjusted, Segoe UI, Liberation Sans, sans-serif" class=""><span style="caret-color: rgb(35, 38, 41); font-size: 15px;" class="">Mateusz</span></font></div></div></body></html>
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