Em Fri, Feb 03, 2017 at 03:56:42PM +0530, Ravi Bangoria escreveu: > After patch: > $ perf record -a -e sdt_glib:idle__add > event syntax error: 'sdt_glib:idle__add' > \___ unknown tracepoint > > Error: File /sys/kernel/debug/tracing/events/sdt_glib/idle__add not found. > Hint: SDT event cannot be directly recorded on. Please use 'perf probe > sdt_glib:idle__add' before recording it. > ... > > $ perf probe sdt_glib:idle__add > Added new event: > sdt_glib:idle__add (on %idle__add in > /usr/lib64/libglib-2.0.so.0.5000.2) > > You can now use it in all perf tools, such as: > > perf record -e sdt_glib:idle__add -aR sleep 1 > > $ perf record -a -e sdt_glib:idle__add > [ perf record: Woken up 1 times to write data ] > [ perf record: Captured and wrote 0.175 MB perf.data ]
Looks much better! Thanks! Unsure if we should state somewhere that this needs to be done only once per boot. Ingo, are you ok now? Ack? - Arnaldo
