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Add support for 'perf kvm stat' on arm64 platform.
Example:
# perf kvm stat report
Analyze events for all VMs, all VCPUs:
VM-EXIT Samples Samples% Time% Min Time Max Time Avg time
DABT_LOW 661867 98.91% 40.45% 2.19us 3364.65us 6.24us ( +- 0.34% )
IRQ 4598 0.69% 57.44% 2.89us 3397.59us 1276.27us ( +- 1.61% )
WFx 1475 0.22% 1.71% 2.22us 3388.63us 118.31us ( +- 8.69% )
IABT_LOW 1018 0.15% 0.38% 2.22us 2742.07us 38.29us ( +- 12.55% )
SYS64 180 0.03% 0.01% 2.07us 112.91us 6.57us ( +- 14.95% )
HVC64 17 0.00% 0.01% 2.19us 322.35us 42.95us ( +- 58.98% )
Total Samples:669155, Total events handled time:10216387.86us.
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Tested-by: Leo Yan <leo.yan@linaro.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Suleiman Souhlal <suleiman@google.com>
Link: http://lore.kernel.org/lkml/20201027062421.463355-1-sergey.senozhatsky@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
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| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.