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3ba4d2e1a8
linux_dsm_epyc7002/tools/perf/util
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Arnaldo Carvalho de Melo 3ba4d2e1a8 perf header: Pack 'struct perf_session_env' 
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.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-01-13 10:06:23 -03:00
..
include perf fs: Add procfs support 2013-11-05 15:15:07 -03:00
scripting-engines perf tools: No need to test against NULL before calling free() 2013-12-26 15:58:52 -03:00
abspath.c
alias.c perf tools: Introduce zfree 2013-12-27 15:17:00 -03:00
annotate.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
annotate.h perf annotate: Make symbol__inc_addr_samples private 2013-12-19 11:34:33 -03:00
bitmap.c perf tools: Add bitmap_or function into bitmap object 2012-02-13 23:28:10 -02:00
build-id.c perf symbols: Constify some DSO methods parameters 2013-12-10 16:51:10 -03:00
build-id.h perf symbols: Constify some DSO methods parameters 2013-12-10 16:51:10 -03:00
cache.h tools/perf: Turn strlcpy() into a __weak function 2013-10-09 08:48:49 +02:00
callchain.c perf callchain: Convert children list to rbtree 2013-10-21 17:33:23 -03:00
callchain.h perf tools: Rename 'perf_record_opts' to 'record_opts 2013-12-19 14:43:45 -03:00
cgroup.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
cgroup.h perf tool: Add cgroup support 2011-02-16 13:30:48 +01:00
color.c perf tools: Remove cast of non-variadic function to variadic 2013-11-01 10:40:51 -03:00
color.h perf tools: Remove cast of non-variadic function to variadic 2013-11-01 10:40:51 -03:00
comm.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
comm.h perf tools: Get current comm instead of last one 2013-11-04 12:16:39 -03:00
config.c perf tools: Use __maybe_used for unused variables 2012-09-11 12:19:15 -03:00
cpumap.c perf fs: Rename NAME_find_mountpoint() to NAME__mountpoint() 2013-11-05 15:15:00 -03:00
cpumap.h perf tools: Rename cpu_map__all() to cpu_map__empty() 2013-07-12 13:45:44 -03:00
ctype.c perf tools: ctype.c only wants util.h 2012-02-13 23:17:40 -02:00
data.c perf tools: Add perf_data_file__write interface 2013-12-02 09:22:46 -03:00
data.h perf tools: Add perf_data_file__write interface 2013-12-02 09:22:46 -03:00
debug.c perf tools: Get rid of a duplicate va_end() in error reporting routine 2013-12-19 11:38:42 -03:00
debug.h perf tools: Overload pr_stat traceevent print function 2013-12-04 15:23:55 -03:00
dso.c perf tools: Introduce zfree 2013-12-27 15:17:00 -03:00
dso.h perf symbols: Use consistent name for the DSO binary type member 2013-12-17 16:34:08 -03:00
dwarf-aux.c perf probe: Fix to find line information for probe list 2013-10-04 15:16:05 -03:00
dwarf-aux.h perf probe: Fix to find line information for probe list 2013-10-04 15:16:05 -03:00
environment.c
event.c perf tools: Do not synthesize the treads of default guest. 2013-12-23 16:49:51 -03:00
event.h perf record: Synthesize non-exec MMAP records when --data used 2013-11-11 15:56:39 -03:00
evlist.c perf evlist: Auto unmap on destructor 2014-01-13 10:06:22 -03:00
evlist.h perf evlist: Move destruction of maps to evlist destructor 2014-01-13 10:06:21 -03:00
evsel.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
evsel.h perf tools: Rename 'perf_record_opts' to 'record_opts 2013-12-19 14:43:45 -03:00
exec_cmd.c perf tools: Makefile: Remove various and sundry cruft 2011-02-18 07:43:06 -02:00
exec_cmd.h
fs.c perf fs: Add procfs support 2013-11-05 15:15:07 -03:00
fs.h perf fs: Add procfs support 2013-11-05 15:15:07 -03:00
generate-cmdlist.sh tools/perf: Standardize feature support define names to: HAVE_{FEATURE}_SUPPORT 2013-10-09 08:48:28 +02:00
header.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
header.h perf header: Pack 'struct perf_session_env' 2014-01-13 10:06:23 -03:00
help.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
help.h
hist.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
hist.h perf annotate: Adopt methods from hists 2013-12-19 11:34:27 -03:00
hweight.c
intlist.c perf util: Add findnew method to intlist 2013-10-14 10:28:48 -03:00
intlist.h perf util: Add findnew method to intlist 2013-10-14 10:28:48 -03:00
levenshtein.c
levenshtein.h
machine.c perf tools: Introduce zfree 2013-12-27 15:17:00 -03:00
machine.h perf target: Shorten perf_target__ to target__ 2013-11-12 16:51:03 -03:00
map.c perf script: Add an option to print the source line number 2013-12-09 14:47:15 -03:00
map.h perf script: Add an option to print the source line number 2013-12-09 14:47:15 -03:00
pager.c perf tools: Fix pager on minimal-install embedded systems 2012-05-30 15:10:39 -03:00
parse-events.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
parse-events.h perf parse events: Demystify memory allocations 2013-07-12 13:52:05 -03:00
parse-events.l perf tools: Move start conditions to start of the flex file 2013-10-11 12:17:31 -03:00
parse-events.y perf parse events: Demystify memory allocations 2013-07-12 13:52:05 -03:00
parse-options.c perf tools: Add option macro OPT_BOOLEAN_SET 2013-11-27 14:58:36 -03:00
parse-options.h perf tools: Add option macro OPT_BOOLEAN_SET 2013-11-27 14:58:36 -03:00
path.c tools/perf: Turn strlcpy() into a __weak function 2013-10-09 08:48:49 +02:00
perf_regs.h tools/perf: Standardize feature support define names to: HAVE_{FEATURE}_SUPPORT 2013-10-09 08:48:28 +02:00
PERF-VERSION-GEN perf tools: Fix version when building out of tree 2013-11-07 10:40:47 -03:00
pmu.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
pmu.h tools/perf/stat: Add event unit and scale support 2013-11-27 11:16:39 +01:00
pmu.l perf tools: Add perf pmu object to access pmu format definition 2012-03-16 14:29:35 -03:00
pmu.y perf tools: Fix build with bison 2.3 and older. 2013-02-14 16:12:34 -03:00
probe-event.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
probe-event.h perf probe: Support basic dwarf-based operations on uprobe events 2013-12-26 11:22:01 -03:00
probe-finder.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
probe-finder.h perf tools: Finish the removal of 'self' arguments 2013-11-05 15:32:36 -03:00
pstack.c perf tools: Stop using 'self' in pstack 2012-11-14 16:50:38 -03:00
pstack.h perf tools: Finish the removal of 'self' arguments 2013-11-05 15:32:36 -03:00
python-ext-sources perf tools: Add trace-event object 2013-12-04 15:20:52 -03:00
python.c Merge branch 'perf/urgent' into perf/core 2013-10-29 11:23:32 +01:00
quote.c
quote.h
rblist.c perf util: Add findnew method to intlist 2013-10-14 10:28:48 -03:00
rblist.h perf util: Add findnew method to intlist 2013-10-14 10:28:48 -03:00
record.c perf tools: Rename 'perf_record_opts' to 'record_opts 2013-12-19 14:43:45 -03:00
run-command.c
run-command.h
session.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
session.h perf symbols: Add 'machine' member to struct addr_location 2013-12-19 17:38:27 -03:00
setup.py tools/: Convert to new topic libraries 2013-12-16 16:03:27 -03:00
sigchain.c
sigchain.h
sort.c perf sort: Do not compare dso again 2013-12-18 14:43:04 -03:00
sort.h perf tools: Remove unneeded include 2013-11-07 11:51:19 -03:00
srcline.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
stat.c perf stats: Add max and min stats 2013-08-07 17:35:26 -03:00
stat.h perf stats: Add max and min stats 2013-08-07 17:35:26 -03:00
strbuf.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
strbuf.h
strfilter.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
strfilter.h perf tools: Finish the removal of 'self' arguments 2013-11-05 15:32:36 -03:00
string.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
strlist.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
strlist.h perf tools: Stop using 'self' in strlist 2013-01-25 12:49:28 -03:00
svghelper.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
svghelper.h perf timechart: Add --highlight option 2013-12-17 16:33:55 -03:00
symbol-elf.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
symbol-minimal.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
symbol.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
symbol.h perf symbols: Add 'machine' member to struct addr_location 2013-12-19 17:38:27 -03:00
target.c perf record: Make per-cpu mmaps the default. 2013-11-27 14:58:36 -03:00
target.h perf target: Move the checking of which map function to call into function. 2013-12-04 13:46:37 -03:00
thread_map.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
thread_map.h perf evlist: Add thread_map__nr() helper 2013-03-15 13:06:02 -03:00
thread.c perf tools: Fix inverted error verification bug in thread__fork 2013-12-13 10:30:21 -03:00
thread.h perf thread: Move comm_list check into function 2013-11-27 14:58:37 -03:00
tool.h perf tools: Add attr->mmap2 support 2013-09-11 10:09:32 -03:00
top.c perf tools: Rename 'perf_record_opts' to 'record_opts 2013-12-19 14:43:45 -03:00
top.h perf tools: Rename 'perf_record_opts' to 'record_opts 2013-12-19 14:43:45 -03:00
trace-event-info.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
trace-event-parse.c perf tools: Add trace-event object 2013-12-04 15:20:52 -03:00
trace-event-read.c perf tools: Add trace-event object 2013-12-04 15:20:52 -03:00
trace-event-scripting.c perf symbols: Add 'machine' member to struct addr_location 2013-12-19 17:38:27 -03:00
trace-event.c perf tools: Add trace-event global object for tracepoint interface 2013-12-04 15:21:25 -03:00
trace-event.h perf symbols: Add 'machine' member to struct addr_location 2013-12-19 17:38:27 -03:00
types.h perf tools: Add union u64_swap type for swapping u64 data 2012-05-22 12:50:25 -03:00
unwind.c perf symbols: Limit max callchain using max_stack on DWARF unwinding too 2013-11-14 16:00:23 -03:00
unwind.h perf symbols: Limit max callchain using max_stack on DWARF unwinding too 2013-11-14 16:00:23 -03:00
usage.c perf target: Introduce perf_target__parse_uid() 2012-05-07 16:46:48 -03:00
util.c perf tools: Move mem_bswap32/64 to util.c 2013-12-13 10:30:21 -03:00
util.h perf tools: Introduce zfree 2013-12-27 15:17:00 -03:00
values.c perf tools: Use zfree to help detect use after free bugs 2013-12-27 17:08:19 -03:00
values.h
vdso.c perf symbols: Remove open coded management of long_name_allocated member 2013-12-10 16:51:09 -03:00
vdso.h perf tools: Back [vdso] DSO with real data 2012-09-11 12:08:30 -03:00
wrapper.c perf tools: Use __maybe_used for unused variables 2012-09-11 12:19:15 -03:00
xyarray.c perf tools: Introduce event selectors 2011-01-03 16:39:04 -02:00
xyarray.h perf tools: Introduce event selectors 2011-01-03 16:39:04 -02:00