Messages in this thread | | | From | Leo Yan <> | Subject | [PATCH v3 00/14] perf kvm: Support histograms and TUI mode | Date | Tue, 28 Feb 2023 19:51:11 +0800 |
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This patch set is to enable histograms and (partially) TUI mode in perf kvm tool.
Patch set v1 [1] gives brief introduction for the change and this series has a minor update for the patch 13 'perf kvm: Add TUI mode for stat report' to avoid building failure when the system doesn't support HAVE_SLANG_SUPPORT.
We can use below commands for testing this series:
In a terminal, you could launch a virtual machine with qemu command; in below case, I downloaded a Ubuntu (or Debian) iso file and used it as the file system image:
$ qemu-system-x86_64 -M pc -enable-kvm -cpu host -m 4096 -hda ubuntu-22.04-desktop-amd64.iso
Then in another terminal, I can use below command to capture KVM trace data and report the result:
# cd linux/tools/perf # ./perf kvm stat record # ./perf kvm stat report => Output in TUI mode # ./perf kvm stat report --stdio => Output in stdio mode
Changes from v2: * Found building failure with command 'make VF=1 DEBUG=1 NO_SLANG=1', fixed it in the patch 13. (James Clark)
Changes from v1: * Updated the patch 13 'perf kvm: Add TUI mode for stat report' to avoid building failure if no support HAVE_SLANG_SUPPORT.
[1] https://lore.kernel.org/lkml/20230226042053.1492409-1-leo.yan@linaro.org/
Leo Yan (14): perf kvm: Refactor overall statistics perf kvm: Add pointer to 'perf_kvm_stat' in kvm event perf kvm: Move up metrics helpers perf kvm: Use subtraction for comparison metrics perf kvm: Introduce histograms data structures perf kvm: Pass argument 'sample' to kvm_alloc_init_event() perf kvm: Parse address location for samples perf kvm: Add dimensions for KVM event statistics perf kvm: Use histograms list to replace cached list perf kvm: Polish sorting key perf kvm: Support printing attributions for dimensions perf kvm: Add dimensions for percentages perf kvm: Add TUI mode for stat report perf kvm: Update documentation to reflect new changes
tools/perf/Documentation/perf-kvm.txt | 9 +- tools/perf/builtin-kvm.c | 856 +++++++++++++++++++++----- tools/perf/util/kvm-stat.h | 26 +- 3 files changed, 716 insertions(+), 175 deletions(-)
-- 2.34.1
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