https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=198148
--- Comment #5 from [email protected] --- 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. _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "[email protected]"
