Date: Sat, 18 Apr 2015 03:00:48 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 198148] [hwpmc] pmcstat -G doesn't resolve symbols from userland processes Message-ID: <bug-198148-8-ePiudTOBQ2@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-198148-8@https.bugs.freebsd.org/bugzilla/> References: <bug-198148-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=198148 --- Comment #5 from ganbold@gmail.com --- It looks like when program isn't compiled with debug symbols pmcstat won't resolve. Please try following with nginx: 1. Before compiling and installing nginx from ports run make clean. 1. Then run make config to choose DEBUG option additionally. 2. Run make 3. Depending from shell do similar way: env DONTSTRIP=1 make install or: setenv DONTSTRIP 1 && make install 4. Restart nginx Now start test with httperf to make load on nginx. Then run for instance: pmcstat -P INSTR_RETIRED_ANY -O /var/tmp/sample -t <nginx worker process pid> After while stop it and run: pmcstat -R /var/tmp/sample -G /var/tmp/sample.callgraph to generate callgraph or: pmcstat -R /var/tmp/sample -F /var/tmp/sample.calltree if you want calltree. I was successfully able to get callgraph and also calltree with resolved nginx symbols. ... 01.04% [350] ngx_vslprintf @ /usr/local/sbin/nginx 73.43% [257] ngx_sprintf 48.25% [124] ngx_http_time 100.0% [124] ngx_http_header_filter 100.0% [124] ngx_http_chunked_header_filter 100.0% [124] ngx_http_range_header_filter 100.0% [124] ngx_http_gzip_header_filter 100.0% [124] ngx_http_ssi_header_filter 100.0% [124] ngx_http_charset_header_filter 100.0% [124] ngx_http_userid_filter 100.0% [124] ngx_http_headers_filter 100.0% [124] ngx_http_not_modified_header_filter 100.0% [124] ngx_http_send_header 100.0% [124] ngx_http_static_handler 100.0% [124] ngx_http_core_content_phase 100.0% [124] ngx_http_core_run_phases 19.84% [51] ngx_http_header_filter 100.0% [51] ngx_http_chunked_header_filter 100.0% [51] ngx_http_range_header_filter 100.0% [51] ngx_http_gzip_header_filter 100.0% [51] ngx_http_ssi_header_filter 100.0% [51] ngx_http_charset_header_filter 100.0% [51] ngx_http_userid_filter 100.0% [51] ngx_http_headers_filter 100.0% [51] ngx_http_not_modified_header_filter 100.0% [51] ngx_http_send_header 100.0% [51] ngx_http_static_handler 100.0% [51] ngx_http_core_content_phase 100.0% [51] ngx_http_core_run_phases 100.0% [51] ngx_http_handler 17.12% [44] ngx_http_set_etag 100.0% [44] ngx_http_static_handler 100.0% [44] ngx_http_core_content_phase 100.0% [44] ngx_http_core_run_phases 100.0% [44] ngx_http_handler 100.0% [44] ngx_http_internal_redirect 100.0% [44] ngx_http_index_handler 100.0% [44] ngx_http_core_content_phase 100.0% [44] ngx_http_core_run_phases 100.0% [44] ngx_http_handler 100.0% [44] ngx_http_process_request 100.0% [44] ngx_http_process_request_headers 100.0% [44] ngx_http_process_request_line ... -- You are receiving this mail because: You are the assignee for the bug.
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