e456d9b2dd
[ Upstream commit f0a29c9647ff8bbb424641f79bc1894e83dec218 ] The output of 'perf bench' gets buffered when I pipe it to a file or to tee, in such a way that I can see it only at the end. E.g. $ perf bench internals synthesize -t < output comes out fine after each test run > $ perf bench internals synthesize -t | tee file.txt < output comes out only at the end of all tests > This patch resolves this issue for 'bench' and 'test' subcommands. See, also: $ perf bench mem all | tee file.txt $ perf bench sched all | tee file.txt $ perf bench internals all -t | tee file.txt $ perf bench internals all | tee file.txt Committer testing: It really gets staggered, i.e. outputs in bursts, when the buffer fills up and has to be drained to make up space for more output. Suggested-by: Riccardo Mancini <rickyman7@gmail.com> Signed-off-by: Sohaib Mohamed <sohaib.amhmd@gmail.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Fabian Hemmer <copy@copy.sh> Cc: Ian Rogers <irogers@google.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20211119061409.78004-1-sohaib.amhmd@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Stable-dep-of: 16203e9cd018 ("perf bench: Add missing setlocale() call to allow usage of %'d style formatting") 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.