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046b243a6a
usage: - kvm stat run a command and gather performance counter statistics - show the result: perf kvm stat report --event=msr See the msr events: Analyze events for all VMs, all VCPUs: MSR Access Samples Samples% Time% Min Time Max Time Avg time 0x6e0:W 67007 98.17% 98.31% 0.59us 10.69us 0.90us ( +- 0.10% ) 0x830:W 1186 1.74% 1.60% 0.53us 108.34us 0.82us ( +- 11.02% ) 0x3b:R 66 0.10% 0.09% 0.56us 1.26us 0.80us ( +- 3.24% ) Total Samples:68259, Total events handled time:61150.95us. Signed-off-by: Lei Zhao <zhaolei27@baidu.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/1618470001-7239-1-git-send-email-lirongqing@baidu.com Signed-off-by: Li RongQing <lirongqing@baidu.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 | ||
Kconfig | ||
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.