Date: Tue, 6 May 2025 10:14:00 -0700 From: Gleb Smirnoff <glebius@freebsd.org> To: Cy Schubert <Cy.Schubert@cschubert.com> Cc: src-committers@freebsd.org, dev-commits-src-all@freebsd.org, dev-commits-src-main@freebsd.org Subject: Re: git: d15792780760 - main - unix: new implementation of unix/stream & unix/seqpacket Message-ID: <aBpDWFEmMyP9iiUi@cell.glebi.us> In-Reply-To: <20250506154446.917B818D@slippy.cwsent.com> References: <202505051956.545JuOPR085707@gitrepo.freebsd.org> <20250506150654.DEAF8300@slippy.cwsent.com> <aBopyxs3FAqD6K4P@cell.glebi.us> <20250506154446.917B818D@slippy.cwsent.com>
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On Tue, May 06, 2025 at 08:44:46AM -0700, Cy Schubert wrote: C> On the sending machine: C> C> bob# procstat -k 50742 C> PID TID COMM TDNAME KSTACK C> C> 50742 103321 rsync - mi_switch C> sleepq_switch sleepq_catch_signals sleepq_timedwait_sig C> _cv_timedwait_sig_sbt kern_select sys_select amd64_syscall C> fast_syscall_common C> bob# C> bob# procstat -k 50743 C> PID TID COMM TDNAME KSTACK C> C> 50743 100644 rsh - mi_switch C> sleepq_switch sleepq_catch_signals sleepq_wait_sig _cv_wait_sig kern_select C> sys_select amd64_syscall fast_syscall_common C> bob# C> C> On the receiving machine: C> C> cwsys# procstat -k 46918 C> PID TID COMM TDNAME KSTACK C> C> 46918 100848 rsync - mi_switch C> sleepq_catch_signals sleepq_timedwait_sig _cv_timedwait_sig_sbt seltdwait C> kern_select sys_select amd64_syscall fast_syscall_common C> cwsys# procstat -k 46919 C> PID TID COMM TDNAME KSTACK C> C> 46919 100999 rsync - mi_switch C> sleepq_catch_signals sleepq_timedwait_sig _cv_timedwait_sig_sbt seltdwait C> kern_select sys_select amd64_syscall fast_syscall_common C> cwsys# C> C> It's proceeding but exceptionally slowly. The hangs occur at 0% and at some C> points during the transfer. Noticed using rsync --progress. Can you please write down a reproduce recipe for me? Or if it is not so easy, then get some ktrace from the rsync. -- Gleb Smirnoff
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