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f2e14cd2c9
This restriction is not present in 'perf report' and since 'perf top' uses the same hists browser, remove it from it as well. With this we create per event buckets with callchain trees, so that # perf top --sort dso -g --no-children Bucketizes samples by DSO and below it shows the callchains leading to functions in this DSO. Try also: # perf top -e sched:*switch -g --no-children To see the callchains leading to sched switches, pressing 'E' to expand all one can quickly see the most common scheduler switches and what leads to them, for instance, calls to IO, futexes, etc. Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Link: https://lkml.kernel.org/r/20190107140854.GA28965@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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.