- 15 Jan, 2014 11 commits
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Mark Rutland authored
The scsi and cfg80211 plugins cast between unsigned long long and pointers, which is problematic for architectures where unsigned long long is wider than the native pointer size: linux/tools/lib/traceevent/plugin_scsi.c: In function ‘process_scsi_trace_parse_cdb’: linux/tools/lib/traceevent/plugin_scsi.c:408:26: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] scsi_trace_parse_cdb(s, (unsigned char *) args[1], args[2]); linux/tools/lib/traceevent/plugin_cfg80211.c: In function ‘process___le16_to_cpup’: linux/tools/lib/traceevent/plugin_cfg80211.c:11:18: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] uint16_t *val = (uint16_t *) args[0]; This patch adds an intermediate cast to unsigned long, silencing the warning. Signed-off-by:Mark Rutland <mark.rutland@arm.com> Acked-by:
Jiri Olsa <jolsa@redhat.com> Acked-by:
Steven Rostedt <rostedt@goodmis.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Will Deacon <will.deacon@arm.com> Link: http://lkml.kernel.org/r/1389782648-4417-3-git-send-email-mark.rutland@arm.comSigned-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com>
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Namhyung Kim authored
The hist_entry__add_cpumode_period() and hist_entry__decay() functions are dealing with hist_entry's stat fields only. Make them he_stat methods then. Signed-off-by:
Namhyung Kim <namhyung@kernel.org> Acked-by:
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Namhyung Kim authored
The report__resolve_callchain() can be shared with perf top code as it doesn't really depend on the perf report code. Factor it out as sample__resolve_callchain(). The same goes to the hist_entry__append_ callchain() too. Signed-off-by:
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Namhyung Kim authored
The machine__resolve_callchain() is called only if symbol_conf. use_callchain is set so no need to check it again. Signed-off-by:
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Mark Rutland authored
Currently the feature-checks Makefile does not inherit $(CC), and calls cc rather than $(CROSS_COMPILE)gcc. Thus the feature checks invoke the native toolchain rather than the cross toolchain, and can identify features as available when they are not. This can break the build. Additionally the native pkg-config is always called as opposed to $(CROSS_COMPILE)pkg-config, so the wrong flags and paths may be passed to the cross compiler. This patch passes CROSS_COMPILE down to the feature-checks Makefile, and forces its use. Additionally pkg-config is replaced with $(CROSS_COMPILE)pkg-config via a new $(PKG_CONFIG) variable. This patch has been build tested on x86_64 and arm. Signed-off-by:
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Namhyung Kim authored
The PEVENT_PLUGIN_UNLOADER function might need some cleanup using pevent like unregister some handlers. So pass pevent as argument. Signed-off-by:
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Namhyung Kim authored
Now all of its users were gone. :) Signed-off-by:
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Namhyung Kim authored
Use plain malloc() and check its return value. Signed-off-by:
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Namhyung Kim authored
If realloc() fails, it'll leak the buffer. Also increate buffer size only if the allocation succeeded. Signed-off-by:
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Namhyung Kim authored
The trace_seq->state is for tracking errors during the use of trace_seq APIs and getting rid of die() in it. Signed-off-by:
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Namhyung Kim authored
It failed to build perf on my ubuntu 10.04 box (gcc 4.4.3): CC util/strlist.o cc1: warnings being treated as errors util/strlist.c: In function ‘str_node__delete’: util/strlist.c:42: error: dereferencing type-punned pointer will break strict-aliasing rules util/strlist.c:42: error: dereferencing type-punned pointer will break strict-aliasing rules CC util/strfilter.o make: *** [util/strlist.o] Error 1 CC util/srcline.o cc1: warnings being treated as errors util/srcline.c: In function ‘addr2line_init’: util/srcline.c:132: error: dereferencing type-punned pointer will break strict-aliasing rules util/srcline.c:132: error: dereferencing type-punned pointer will break strict-aliasing rules util/srcline.c: In function ‘addr2line_cleanup’: util/srcline.c:143: error: dereferencing type-punned pointer will break strict-aliasing rules util/srcline.c:143: error: dereferencing type-punned pointer will break strict-aliasing rules make: *** [util/srcline.o] Error 1 It seems it only allows to remove 'const' qualifier. Signed-off-by:
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- 14 Jan, 2014 3 commits
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Arnaldo Carvalho de Melo authored
To be consistent with the equivalent option in 'stat', also, for the same reason, use -D as the one letter alias. Suggested-by:
Ingo Molnar <mingo@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-p5yjnopajb3a8x0xha7yl5w8@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
That is how the option summary describes it and so that we can free --delay to replace --initial-delay and then be consistent with stat's --delay equivalent option. Suggested-by:
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Ingo Molnar authored
Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf tooling updates from Arnaldo Carvalho de Melo: New features: * perf record: Add --initial-delay option (Andi Kleen) * Column colouring improvements in 'diff' (Ramkumar Ramachandra) Fixes: * Don't show counter information when workload fails (Arnaldo Carvalho de Melo) * Fixup leak on error path in parse events test. (Arnaldo Carvalho de Melo) * Fix --delay option in 'stat' man page (Andi Kleen) * Use the DWARF unwind info only if loaded (Jean Pihet): Developer stuff: * Improve forked workload error reporting by sending the errno in the signal data queueing integer field, using sigqueue and by doing the signal setup in the evlist methods, removing open coded equivalents in various tools. (Arnaldo Carvalho de Melo) * Do more auto exit cleanup shores in the 'evlist' destructor, so that the tools don't have to all do that sequence. (Arnaldo Carvalho de Melo) * Pack 'struct perf_session_env' and 'struct trace' (Arnaldo Carvalho de Melo) * Include tools/lib/api/ in MANIFEST, fixing detached tarballs (Arnaldo Carvalho de Melo) * Add test for building detached source tarballs (Arnaldo Carvalho de Melo) * Shut up libtracevent plugins make message (Jiri Olsa) * Fix installation tests path setup (Jiri Olsa) * Fix id_hdr_size initialization (Jiri Olsa) * Move some header files from tools/perf/ to tools/include/ to make them available to other tools/ dwelling codebases (Namhyung Kim) * Fix 'probe' build when DWARF support libraries not present (Arnaldo Carvalho de Melo) Refactorings: * Move logic to warn about kptr_restrict'ed kernels to separate function in 'report' (Arnaldo Carvalho de Melo) * Move hist browser selection code to separate function (Arnaldo Carvalho de Melo) * Move histogram entries collapsing to separate function (Arnaldo Carvalho de Melo) * Introduce evlist__for_each() & friends (Arnaldo Carvalho de Melo) * Automate setup of FEATURE_CHECK_(C|LD)FLAGS-all variables (Jiri Olsa) * Move arch setup into seprate Makefile (Jiri Olsa) Trivial stuff: * Remove misplaced __maybe_unused in 'stat' (Arnaldo Carvalho de Melo) * Remove old evsel_list usage in 'record' (Arnaldo Carvalho de Melo) * Comment typo fix (Cody P Schafer) * Remove unused test-volatile-register-var.c (Yann Droneaud) Signed-off-by:
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- 13 Jan, 2014 26 commits
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Yann Droneaud authored
Since commit 01287e2c, test-volatile-register-var.c is no more built as part of the automatic feature check. This patch remove the unneeded file. Signed-off-by:
Yann Droneaud <ydroneaud@opteya.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/339d86ad76741ed929defd18541f774b404003b4.1389461371.git.ydroneaud@opteya.comSigned-off-by:
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Arnaldo Carvalho de Melo authored
On a freshly installed system, after libelf-dev is installed we get: CC /tmp/build/perf/util/probe-event.o util/probe-event.c: In function ‘try_to_find_probe_trace_events’: util/probe-event.c:753:46: error: unused parameter ‘target’ [-Werror=unused-parameter] int max_tevs __maybe_unused, const char *target) ^ CC /tmp/build/perf/util/cgroup.o util/probe-event.c: At top level: util/probe-event.c:193:12: error: ‘get_text_start_address’ defined but not used [-Werror=unused-function] static int get_text_start_address(const char *exec, unsigned long *address) ^ cc1: all warnings being treated as errors make[1]: *** [/tmp/build/perf/util/probe-event.o] Error 1 make[1]: *** Waiting for unfinished jobs.... make: *** [install] Error 2 Fix it by enclosing functions only used when those libraries are installed under the suitable preprocessor define and using __maybe_unused to a function that is only built when DWARF support is disabled. Problem introduced in this changeset: commit fb7345bb Author: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Date: Thu Dec 26 05:41:53 2013 +0000 perf probe: Support basic dwarf-based operations on uprobe events Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-73kc2fopt81517hrdgdra18o@git.kernel.orgSigned-off-by: -
Ramkumar Ramachandra authored
In $ perf diff -c wdiff:M,N color the numbers in the Weighted Diff column using color_snprintf(), picking the colors using get_percent_color(). Signed-off-by:
Ramkumar Ramachandra <artagnon@gmail.com> Acked-by:
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Ramkumar Ramachandra authored
In $ perf diff -c ratio color the Ratio column using value_color_snprintf(), a new function that operates exactly like percent_color_snprintf(). At first glance, it looks like percent_color_snprintf() can be turned into a non-variadic function simplifying things; however, 53805eca (perf tools: Remove cast of non-variadic function to variadic, 2013-10-31) explains why it needs to be a variadic function. Signed-off-by:
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Ramkumar Ramachandra authored
Color the numbers in the Delta column using percent_color_snprintf(). Generalize the coloring function so that we can accommodate all three comparison methods in future patches: delta, ratio, and wdiff. Signed-off-by:
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Ramkumar Ramachandra authored
Make percent_color_snprintf() handle negative values correctly. Signed-off-by:
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Namhyung Kim authored
Since it uses unlikely() macro inside WARN() Signed-off-by:
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Andi Kleen authored
perf stat has a --delay option to delay measuring the workload. This is useful to skip measuring the startup phase of the program, which is often very different from the main workload. The same is useful for perf record when sampling. --no-delay was already taken, so add a --initial-delay to perf record too. -D was already taken for record, so there is only a long option. v2: Don't disable group members (Namhyung Kim) v3: port to latest perf/core rename to --initial-delay to avoid conflict with --no-delay Signed-off-by:Andi Kleen <ak@linux.intel.com> Acked-by:
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Jean Pihet authored
Use the info only if it has been found in the .debug_frame section of the ELF binary. Signed-off-by:
Jean Pihet <jean.pihet@linaro.org> Acked-by:
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Arnaldo Carvalho de Melo authored
Test one of the main kernel Makefile targets to generate a perf sources tarball suitable for build outside the full kernel sources. This is to test that the tools/perf/MANIFEST file lists all the files needed to be in such tarball, which sometimes gets broken when we move files around, like when we made some files that were in tools/perf/ available to other tools/ codebases by moving it to tools/include/, etc. Now everytime we use 'make -C tools/perf -f tests/make' this test will be performed, helping detect such problems earlier in the devel cycle. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-gyivwbbu2j7c4j4pwpmttg2p@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
When 553873e1 renamed tools/lib/lk to tools/lib/api we forgot to do the switch in tools/perf/MANIFEST, breaking tarball building: [acme@ssdandy linux]$ make perf-targz-src-pkg TAR [acme@ssdandy linux]$ tar xf perf-3.13.0-rc4.tar.gz -C /tmp/tmp.OgdYyvp77p/ [acme@ssdandy linux]$ make -C /tmp/tmp.OgdYyvp77p/perf-3.13.0-rc4/tools/perf make: Entering directory `/tmp/tmp.OgdYyvp77p/perf-3.13.0-rc4/tools/perf' BUILD: Doing 'make -j8' parallel build FLEX util/pmu-flex.c CC util/evlist.o CC util/evsel.o util/evsel.c:12:28: fatal error: api/fs/debugfs.h: No such file or directory compilation terminated. In file included from util/cache.h:5:0, <SNIP> Fix it. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-1wwjs01rt3xbyhn6kjl2gfs9@git.kernel.orgSigned-off-by:
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Namhyung Kim authored
So that it can be shared with others like libtraceevent. Signed-off-by:
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Namhyung Kim authored
Signed-off-by:
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Namhyung Kim authored
So that it can be shared with others like libtraceevent. Signed-off-by:
Borislav Petkov <bp@suse.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1389276059-8829-2-git-send-email-namhyung@kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
For the common evsel list traversal, so that it becomes more compact. Use the opportunity to start ditching the 'perf_' from 'perf_evlist__', as discussed, as the whole conversion touches a lot of places, lets do it piecemeal when we have the chance due to other work, like in this case. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-qnkx7dzm2h6m6uptkfk03ni6@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Further uncluttering the main 'report' function by group related code in separate function. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-b594zsbwke8khir13kudwqmj@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
To unclutter the main function. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-agvxwpazlucy6h5sejuttw9t@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Its too big, better have a separate function for it so that the main logic gets shorter/clearer. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ahh6vfzyh8fsygjwrsbroeu0@git.kernel.orgSigned-off-by:
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Cody P Schafer authored
s/temr/term/ Signed-off-by:
Cody P Schafer <cody@linux.vnet.ibm.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1389199434-21761-1-git-send-email-cody@linux.vnet.ibm.comSigned-off-by:
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Andi Kleen authored
The --delay option was documented as --initial-delay in the manpage. Fix this. Signed-off-by:
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Jiri Olsa authored
Making perf_event__synthesize_mmap_events global, it will be used in following patch from test code. Signed-off-by:
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Jiri Olsa authored
The id_hdr_size field was not properly initialized, set it to zero, as the machine struct may have come from some non zeroing allocation routine or from the stack without any field being initialized. Signed-off-by:
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Jiri Olsa authored
Instead of explicitly adding same value into FEATURE_CHECK_(C|LD)FLAGS-all variables we can do that automatically. Signed-off-by:
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Arnaldo Carvalho de Melo authored
Initial struct stats: /* size: 368, cachelines: 6, members: 24 */ /* sum members: 353, holes: 3, sum holes: 15 */ /* last cacheline: 48 bytes */ After reorg: [acme@ssdandy linux]$ pahole -C trace ~/bin/trace | tail -4 /* size: 360, cachelines: 6, members: 24 */ /* padding: 7 */ /* last cacheline: 40 bytes */ }; [acme@ssdandy linux]$ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-6jimc80yu89qkx6zb8465s6t@git.kernel.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
Initial struct: [acme@ssdandy linux]$ pahole -C perf_session_env ~/bin/perf struct perf_session_env { char * hostname; /* 0 8 */ char * os_release; /* 8 8 */ char * version; /* 16 8 */ char * arch; /* 24 8 */ int nr_cpus_online; /* 32 4 */ int nr_cpus_avail; /* 36 4 */ char * cpu_desc; /* 40 8 */ char * cpuid; /* 48 8 */ long long unsigned int total_mem; /* 56 8 */ /* --- cacheline 1 boundary (64 bytes) --- */ int nr_cmdline; /* 64 4 */ /* XXX 4 bytes hole, try to pack */ char * cmdline; /* 72 8 */ int nr_sibling_cores; /* 80 4 */ /* XXX 4 bytes hole, try to pack */ char * sibling_cores; /* 88 8 */ int nr_sibling_threads; /* 96 4 */ /* XXX 4 bytes hole, try to pack */ char * sibling_threads; /* 104 8 */ int nr_numa_nodes; /* 112 4 */ /* XXX 4 bytes hole, try to pack */ char * numa_nodes; /* 120 8 */ /* --- cacheline 2 boundary (128 bytes) --- */ int nr_pmu_mappings; /* 128 4 */ /* XXX 4 bytes hole, try to pack */ char * pmu_mappings; /* 136 8 */ int nr_groups; /* 144 4 */ /* size: 152, cachelines: 3, members: 20 */ /* sum members: 128, holes: 5, sum holes: 20 */ /* padding: 4 */ /* last cacheline: 24 bytes */ }; [acme@ssdandy linux]$ [acme@ssdandy linux]$ pahole -C perf_session_env --reorganize --show_reorg_steps ~/bin/perf | grep ^/ | grep -v Final /* Moving 'nr_sibling_cores' from after 'cmdline' to after 'nr_cmdline' */ /* Moving 'nr_numa_nodes' from after 'sibling_threads' to after 'nr_sibling_threads' */ /* Moving 'nr_groups' from after 'pmu_mappings' to after 'nr_pmu_mappings' */ [acme@ssdandy linux]$ Final struct stats: [acme@ssdandy linux]$ pahole -C perf_session_env --reorganize --show_reorg_steps ~/bin/perf | tail -4 /* --- cacheline 2 boundary (128 bytes) --- */ /* size: 128, cachelines: 2, members: 20 */ }; /* saved 24 bytes and 1 cacheline! */ [acme@ssdandy linux]$ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3d9tshamloinzxcqeb7mtd1n@git.kernel.orgSigned-off-by: -
Jiri Olsa authored
Getting rid of following build output: $ make O=/tmp/build/perf -C tools/perf/ install-bin ... make[3]: Nothing to be done for `plugins'. make[2]: Nothing to be done for `plugins'. ... which triggers when traceevent library needs to be rebuilt, but we have plugins built already. Adding extra 'plugins' target with nop which is visible and triggers in both Makefile parts (for detached output directory (O=...) the traceevent Makefile spawns sub make for the build itself). Reported-by:
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