| Message ID | 20220214110914.268126-1-adrian.hunter@intel.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | perf intel-pt: Add perf event clocks to better support VM tracing | expand |
On 14/02/2022 13:09, Adrian Hunter wrote: > Hi > > These patches add 2 new perf event clocks based on TSC for use with VMs. > > The first patch is a minor fix, the next 2 patches add each of the 2 new > clocks. The remaining patches add minimal tools support and are based on > top of the Intel PT Event Trace tools' patches. > > The future work, to add the ability to use perf inject to inject perf > events from a VM guest perf.data file into a VM host perf.data file, > has yet to be implemented. > > > Changes in V2: > perf/x86: Fix native_perf_sched_clock_from_tsc() with __sched_clock_offset > Add __sched_clock_offset unconditionally > > perf/x86: Add support for TSC as a perf event clock > Use an attribute bit 'ns_clockid' to identify non-standard clockids > > perf/x86: Add support for TSC in nanoseconds as a perf event clock > Do not affect use of __sched_clock_offset > Adjust to use 'ns_clockid' Any comments on version 2? > > perf tools: Add new perf clock IDs > perf tools: Add API probes for new clock IDs > perf tools: Add new clock IDs to "perf time to TSC" test > perf tools: Add perf_read_tsc_conv_for_clockid() > perf intel-pt: Add support for new clock IDs > perf intel-pt: Use CLOCK_PERF_HW_CLOCK_NS by default > perf intel-pt: Add config variables for timing parameters > perf intel-pt: Add documentation for new clock IDs > Adjust to use 'ns_clockid' > > > Adrian Hunter (11): > perf/x86: Fix native_perf_sched_clock_from_tsc() with __sched_clock_offset > perf/x86: Add support for TSC as a perf event clock > perf/x86: Add support for TSC in nanoseconds as a perf event clock > perf tools: Add new perf clock IDs > perf tools: Add API probes for new clock IDs > perf tools: Add new clock IDs to "perf time to TSC" test > perf tools: Add perf_read_tsc_conv_for_clockid() > perf intel-pt: Add support for new clock IDs > perf intel-pt: Use CLOCK_PERF_HW_CLOCK_NS by default > perf intel-pt: Add config variables for timing parameters > perf intel-pt: Add documentation for new clock IDs > > arch/x86/events/core.c | 39 ++++++++++-- > arch/x86/include/asm/perf_event.h | 5 ++ > arch/x86/kernel/tsc.c | 2 +- > include/uapi/linux/perf_event.h | 18 +++++- > kernel/events/core.c | 63 +++++++++++++------- > tools/include/uapi/linux/perf_event.h | 18 +++++- > tools/perf/Documentation/perf-config.txt | 18 ++++++ > tools/perf/Documentation/perf-intel-pt.txt | 47 +++++++++++++++ > tools/perf/Documentation/perf-record.txt | 9 ++- > tools/perf/arch/x86/util/intel-pt.c | 95 ++++++++++++++++++++++++++++-- > tools/perf/builtin-record.c | 2 +- > tools/perf/tests/perf-time-to-tsc.c | 42 ++++++++++--- > tools/perf/util/clockid.c | 14 +++++ > tools/perf/util/evsel.c | 1 + > tools/perf/util/intel-pt.c | 27 +++++++-- > tools/perf/util/intel-pt.h | 7 ++- > tools/perf/util/perf_api_probe.c | 24 ++++++++ > tools/perf/util/perf_api_probe.h | 2 + > tools/perf/util/perf_event_attr_fprintf.c | 1 + > tools/perf/util/record.h | 2 + > tools/perf/util/tsc.c | 58 ++++++++++++++++++ > tools/perf/util/tsc.h | 2 + > 22 files changed, 444 insertions(+), 52 deletions(-) > > > Regards > Adrian
On 21/02/2022 08:54, Adrian Hunter wrote: > On 14/02/2022 13:09, Adrian Hunter wrote: >> Hi >> >> These patches add 2 new perf event clocks based on TSC for use with VMs. >> >> The first patch is a minor fix, the next 2 patches add each of the 2 new >> clocks. The remaining patches add minimal tools support and are based on >> top of the Intel PT Event Trace tools' patches. >> >> The future work, to add the ability to use perf inject to inject perf >> events from a VM guest perf.data file into a VM host perf.data file, >> has yet to be implemented. >> >> >> Changes in V2: >> perf/x86: Fix native_perf_sched_clock_from_tsc() with __sched_clock_offset >> Add __sched_clock_offset unconditionally >> >> perf/x86: Add support for TSC as a perf event clock >> Use an attribute bit 'ns_clockid' to identify non-standard clockids >> >> perf/x86: Add support for TSC in nanoseconds as a perf event clock >> Do not affect use of __sched_clock_offset >> Adjust to use 'ns_clockid' > > Any comments on version 2? ☺/
Hi These patches add 2 new perf event clocks based on TSC for use with VMs. The first patch is a minor fix, the next 2 patches add each of the 2 new clocks. The remaining patches add minimal tools support and are based on top of the Intel PT Event Trace tools' patches. The future work, to add the ability to use perf inject to inject perf events from a VM guest perf.data file into a VM host perf.data file, has yet to be implemented. Changes in V2: perf/x86: Fix native_perf_sched_clock_from_tsc() with __sched_clock_offset Add __sched_clock_offset unconditionally perf/x86: Add support for TSC as a perf event clock Use an attribute bit 'ns_clockid' to identify non-standard clockids perf/x86: Add support for TSC in nanoseconds as a perf event clock Do not affect use of __sched_clock_offset Adjust to use 'ns_clockid' perf tools: Add new perf clock IDs perf tools: Add API probes for new clock IDs perf tools: Add new clock IDs to "perf time to TSC" test perf tools: Add perf_read_tsc_conv_for_clockid() perf intel-pt: Add support for new clock IDs perf intel-pt: Use CLOCK_PERF_HW_CLOCK_NS by default perf intel-pt: Add config variables for timing parameters perf intel-pt: Add documentation for new clock IDs Adjust to use 'ns_clockid' Adrian Hunter (11): perf/x86: Fix native_perf_sched_clock_from_tsc() with __sched_clock_offset perf/x86: Add support for TSC as a perf event clock perf/x86: Add support for TSC in nanoseconds as a perf event clock perf tools: Add new perf clock IDs perf tools: Add API probes for new clock IDs perf tools: Add new clock IDs to "perf time to TSC" test perf tools: Add perf_read_tsc_conv_for_clockid() perf intel-pt: Add support for new clock IDs perf intel-pt: Use CLOCK_PERF_HW_CLOCK_NS by default perf intel-pt: Add config variables for timing parameters perf intel-pt: Add documentation for new clock IDs arch/x86/events/core.c | 39 ++++++++++-- arch/x86/include/asm/perf_event.h | 5 ++ arch/x86/kernel/tsc.c | 2 +- include/uapi/linux/perf_event.h | 18 +++++- kernel/events/core.c | 63 +++++++++++++------- tools/include/uapi/linux/perf_event.h | 18 +++++- tools/perf/Documentation/perf-config.txt | 18 ++++++ tools/perf/Documentation/perf-intel-pt.txt | 47 +++++++++++++++ tools/perf/Documentation/perf-record.txt | 9 ++- tools/perf/arch/x86/util/intel-pt.c | 95 ++++++++++++++++++++++++++++-- tools/perf/builtin-record.c | 2 +- tools/perf/tests/perf-time-to-tsc.c | 42 ++++++++++--- tools/perf/util/clockid.c | 14 +++++ tools/perf/util/evsel.c | 1 + tools/perf/util/intel-pt.c | 27 +++++++-- tools/perf/util/intel-pt.h | 7 ++- tools/perf/util/perf_api_probe.c | 24 ++++++++ tools/perf/util/perf_api_probe.h | 2 + tools/perf/util/perf_event_attr_fprintf.c | 1 + tools/perf/util/record.h | 2 + tools/perf/util/tsc.c | 58 ++++++++++++++++++ tools/perf/util/tsc.h | 2 + 22 files changed, 444 insertions(+), 52 deletions(-) Regards Adrian