mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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Yicong Yang
fa0720b32a
[ Upstream commit2615639352] Currently we'll only print metric headers for metric leader in aggregration mode. This will make `perf iostat` header not shown since it'll aggregrated globally but don't have metric events: root@ubuntu204:/home/yang/linux/tools/perf# ./perf stat --iostat --timeout 1000 Performance counter stats for 'system wide': port 0000:00 0 0 0 0 0000:80 0 0 0 0 [...] Fix this by excluding the iostat in the check of printing metric headers. Then we can see the headers: root@ubuntu204:/home/yang/linux/tools/perf# ./perf stat --iostat --timeout 1000 Performance counter stats for 'system wide': port Inbound Read(MB) Inbound Write(MB) Outbound Read(MB) Outbound Write(MB) 0000:00 0 0 0 0 0000:80 0 0 0 0 [...] Fixes:193a9e3020("perf stat: Don't display metric header for non-leader uncore events") Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jonathan Cameron <jonathan.cameron@huawei.com> Cc: Junhao He <hejunhao3@huawei.com> Cc: linuxarm@huawei.com Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com> Cc: Zeng Tao <prime.zeng@hisilicon.com> Link: https://lore.kernel.org/r/20240802065800.48774-1-yangyicong@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.