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| Filename | Latest commit message | Latest commit date |
|---|---|---|
fcc309e618
New features:
- Beautify the statx syscall arguments in 'perf trace' (Arnaldo Carvalho de Melo)
e.g.:
System wide strace like session:
# trace -e statx
16612.967 ( 0.028 ms): statx/4562 statx(dfd: CWD, filename: /tmp/statx, flags: SYMLINK_NOFOLLOW, mask: TYPE|MODE|NLINK|UID|GID|ATIME|MTIME|CTIME|INO|SIZE|BLOCKS|BTIME, buffer: 0x7ffef195d660) = 0
36050.891 ( 0.007 ms): statx/4576 statx(dfd: CWD, filename: /etc/passwd, flags: SYMLINK_NOFOLLOW|STATX_DONT_SYNC, mask: BTIME, buffer: 0x7ffda9bf50f0) = 0
^C#
User visible:
- Handle unpaired raw_syscalls:sys_exit events in 'perf trace', i.e. we
shouldn't try to calculate duration or print the timestamp for a missing
matching raw_syscalls:sys_enter (Arnaldo Carvalho de Melo)
- Do not print "cycles: 0" in perf report LBR lines in platforms not
supporting 'cycles', such as Intel's Broadwell (Jin Yao)
- Handle missing $HOME env var (Jiri Olsa)
- Map 8-bit registers (al, bl, etc), not supported in uprobes_events, to
the next best thing (ax, bx, etc) supported (Ravi Bangoria)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-4.12-20170331' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
New features:
- Beautify the statx syscall arguments in 'perf trace' (Arnaldo Carvalho de Melo)
e.g.:
System wide strace like session:
# trace -e statx
16612.967 ( 0.028 ms): statx/4562 statx(dfd: CWD, filename: /tmp/statx, flags: SYMLINK_NOFOLLOW, mask: TYPE|MODE|NLINK|UID|GID|ATIME|MTIME|CTIME|INO|SIZE|BLOCKS|BTIME, buffer: 0x7ffef195d660) = 0
36050.891 ( 0.007 ms): statx/4576 statx(dfd: CWD, filename: /etc/passwd, flags: SYMLINK_NOFOLLOW|STATX_DONT_SYNC, mask: BTIME, buffer: 0x7ffda9bf50f0) = 0
^C#
User visible changes:
- Handle unpaired raw_syscalls:sys_exit events in 'perf trace', i.e. we
shouldn't try to calculate duration or print the timestamp for a missing
matching raw_syscalls:sys_enter (Arnaldo Carvalho de Melo)
- Do not print "cycles: 0" in perf report LBR lines in platforms not
supporting 'cycles', such as Intel's Broadwell (Jin Yao)
- Handle missing $HOME env var (Jiri Olsa)
- Map 8-bit registers (al, bl, etc), not supported in uprobes_events, to
the next best thing (ax, bx, etc) supported (Ravi Bangoria)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.