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Arnaldo Carvalho de Melo 7b018e2987 perf map: Remove ->groups from 'struct map' 
With this 'struct map' uses a bit over 3 cachelines:

  $ pahole -C map ~/bin/perf
  <SNIP>
  	/* --- cacheline 2 boundary (128 bytes) --- */
  	u64                        (*unmap_ip)(struct map *, u64); /*   128     8 */
  	struct dso *               dso;                            /*   136     8 */
  	refcount_t                 refcnt;                         /*   144     4 */

  	/* size: 152, cachelines: 3, members: 18 */
  	/* sum members: 145, holes: 1, sum holes: 3 */
  	/* padding: 4 */
  	/* forced alignments: 2 */
  	/* last cacheline: 24 bytes */
  } __attribute__((__aligned__(8)));
  $

We probably can move map->map/unmap_ip() moved to 'struct map_groups',
that will shave more 16 bytes, getting this almost to two cachelines.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-ymlv3nzpofv2fugnjnizkrwy@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-12 08:20:53 -03:00
..
accounting
arch perf/core improvements and fixes: 2019-10-22 01:15:45 +02:00
bpf tools: bpf: Use !building_out_of_srctree to determine srctree 2019-09-30 10:53:34 +02:00
build tools build: Add capability-related feature detection 2019-08-12 17:14:14 -03:00
cgroup iocost_monitor: Report debt 2019-09-10 12:31:39 -06:00
debugging
firewire
firmware
gpio tools: gpio: Use !building_out_of_srctree to determine srctree 2019-10-22 14:42:42 +02:00
hv - First round of vmbus hibernation support from Dexuan Cui. 2019-09-24 12:36:31 -07:00
iio tools: iio: add .gitignore 2019-08-18 20:45:57 +01:00
include tools headers UAPI: Sync sched.h with the kernel 2019-10-15 12:44:00 -03:00
io_uring
kvm/kvm_stat
laptop
leds
lib libsubcmd: Use -O0 with DEBUG=1 2019-11-06 15:49:39 -03:00
memory-model tools/memory-model: Update the informal documentation 2019-08-09 10:28:57 -07:00
nfsd
objtool KVM: x86: Check kvm_rebooting in kvm_spurious_fault() 2019-09-25 15:23:33 +02:00
pci
pcmcia
perf perf map: Remove ->groups from 'struct map' 2019-11-12 08:20:53 -03:00
power platform-drivers-x86 for v5.4-2 2019-09-24 12:39:40 -07:00
scripts
spi
testing Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-08 18:21:05 -08:00
thermal/tmon
time
usb usbip: tools: Fix read_usb_vudc_device() error path handling 2019-10-28 17:51:06 +01:00
virtio tools/virtio: xen stub 2019-10-13 09:38:27 -04:00
vm
wmi
Makefile tools: Keep list of tools in alphabetical order 2019-08-14 10:59:59 -03:00