qbit/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-11-14 09:00:21 -07:00
Code Releases Activity
18,382 Commits 58 Branches 402 Tags 522 MiB
ae8251b0aa
Commit Graph

10 Commits

Author SHA1 Message Date
Dmitriy Vyukov
8371b0142e undo CL 45770044 / d795425bfa18 
Breaks darwin and freebsd.

««« original CL description
runtime: increase page size to 8K
Tcmalloc uses 8K, 32K and 64K pages, and in custom setups 256K pages.
Only Chromium uses 4K pages today (in "slow but small" configuration).
The general tendency is to increase page size, because it reduces
metadata size and DTLB pressure.
This change reduces GC pause by ~10% and slightly improves other metrics.

json-1
allocated                 8037492      8038689      +0.01%
allocs                     105762       105573      -0.18%
cputime                 158400000    155800000      -1.64%
gc-pause-one              4412234      4135702      -6.27%
gc-pause-total            2647340      2398707      -9.39%
rss                      54923264     54525952      -0.72%
sys-gc                    3952624      3928048      -0.62%
sys-heap                 46399488     46006272      -0.85%
sys-other                 5597504      5290304      -5.49%
sys-stack                  393216       393216      +0.00%
sys-total                56342832     55617840      -1.29%
time                    158478890    156046916      -1.53%
virtual-mem             256548864    256593920      +0.02%

garbage-1
allocated                 2991113      2986259      -0.16%
allocs                      62844        62652      -0.31%
cputime                  16330000     15860000      -2.88%
gc-pause-one            789108229    725555211      -8.05%
gc-pause-total            3945541      3627776      -8.05%
rss                    1143660544   1132253184      -1.00%
sys-gc                   65609600     65806208      +0.30%
sys-heap               1032388608   1035599872      +0.31%
sys-other                37501632     22777664     -39.26%
sys-stack                 8650752      8781824      +1.52%
sys-total              1144150592   1132965568      -0.98%
time                     16364602     15891994      -2.89%
virtual-mem            1327296512   1313746944      -1.02%

R=golang-codereviews, dave, khr, rsc, khr
CC=golang-codereviews
https://golang.org/cl/45770044
»»»

R=golang-codereviews
CC=golang-codereviews
https://golang.org/cl/56060043
 2014-01-23 19:56:59 +04:00
Dmitriy Vyukov
6d603af6dc runtime: increase page size to 8K 
Tcmalloc uses 8K, 32K and 64K pages, and in custom setups 256K pages.
Only Chromium uses 4K pages today (in "slow but small" configuration).
The general tendency is to increase page size, because it reduces
metadata size and DTLB pressure.
This change reduces GC pause by ~10% and slightly improves other metrics.

json-1
allocated                 8037492      8038689      +0.01%
allocs                     105762       105573      -0.18%
cputime                 158400000    155800000      -1.64%
gc-pause-one              4412234      4135702      -6.27%
gc-pause-total            2647340      2398707      -9.39%
rss                      54923264     54525952      -0.72%
sys-gc                    3952624      3928048      -0.62%
sys-heap                 46399488     46006272      -0.85%
sys-other                 5597504      5290304      -5.49%
sys-stack                  393216       393216      +0.00%
sys-total                56342832     55617840      -1.29%
time                    158478890    156046916      -1.53%
virtual-mem             256548864    256593920      +0.02%

garbage-1
allocated                 2991113      2986259      -0.16%
allocs                      62844        62652      -0.31%
cputime                  16330000     15860000      -2.88%
gc-pause-one            789108229    725555211      -8.05%
gc-pause-total            3945541      3627776      -8.05%
rss                    1143660544   1132253184      -1.00%
sys-gc                   65609600     65806208      +0.30%
sys-heap               1032388608   1035599872      +0.31%
sys-other                37501632     22777664     -39.26%
sys-stack                 8650752      8781824      +1.52%
sys-total              1144150592   1132965568      -0.98%
time                     16364602     15891994      -2.89%
virtual-mem            1327296512   1313746944      -1.02%

R=golang-codereviews, dave, khr, rsc, khr
CC=golang-codereviews
https://golang.org/cl/45770044
 2014-01-23 18:59:43 +04:00
Dmitriy Vyukov
a33ef8d11b runtime: account for all sys memory in MemStats 
Currently lots of sys allocations are not accounted in any of XxxSys,
including GC bitmap, spans table, GC roots blocks, GC finalizer blocks,
iface table, netpoll descriptors and more. Up to ~20% can unaccounted.
This change introduces 2 new stats: GCSys and OtherSys for GC metadata
and all other misc allocations, respectively.
Also ensures that all XxxSys indeed sum up to Sys. All sys memory allocation
functions require the stat for accounting, so that it's impossible to miss something.
Also fix updating of mcache_sys/inuse, they were not updated after deallocation.

test/bench/garbage/parser before:
Sys		670064344
HeapSys		610271232
StackSys	65536
MSpanSys	14204928
MCacheSys	16384
BuckHashSys	1439992

after:
Sys		670064344
HeapSys		610271232
StackSys	65536
MSpanSys	14188544
MCacheSys	16384
BuckHashSys	3194304
GCSys		39198688
OtherSys	3129656

Fixes #5799.

R=rsc, dave, alex.brainman
CC=golang-dev
https://golang.org/cl/12946043
 2013-09-06 16:55:40 -04:00
Robert Griesemer
465b9c35e5 gofmt: apply gofmt -w src misc 
Remove trailing whitespace in comments.
No other changes.

R=r
CC=golang-dev
https://golang.org/cl/6815053
 2012-10-30 13:38:01 -07:00
Shenghou Ma
c1b7ddc6aa runtime: update docs for MemStats.PauseNs 
PauseNs is a circular buffer of recent pause times, and the
most recent one is at [((NumGC-1)+256)%256].

   Also fix comments cross-linking the Go and C definition of
various structs.

R=golang-dev, rsc, bradfitz
CC=golang-dev
https://golang.org/cl/6657047
 2012-10-22 01:08:13 +08:00
Sébastien Paolacci
5c598d3c9f runtime: release unused memory to the OS. 
Periodically browse MHeap's freelists for long unused spans and release them if any.

Current hardcoded settings:
        - GC is forced if none occured over the last 2 minutes.
        - spans are handed back after 5 minutes of uselessness.

SysUnused (for Unix) is a wrapper on madvise MADV_DONTNEED on Linux and MADV_FREE on BSDs.

R=rsc, dvyukov, remyoudompheng
CC=golang-dev
https://golang.org/cl/5451057
 2012-02-16 13:30:04 -05:00
Rémy Oudompheng
842c906e2e runtime: delete UpdateMemStats, replace with ReadMemStats(&stats). 
Unexports runtime.MemStats and rename MemStatsType to MemStats.
The new accessor requires passing a pointer to a user-allocated
MemStats structure.

Fixes #2572.

R=bradfitz, rsc, bradfitz, gustavo
CC=golang-dev, remy
https://golang.org/cl/5616072
 2012-02-06 19:16:26 +01:00
Russ Cox
226fb099d9 runtime: add UpdateMemStats, use in tests 
Drops mallocrep1.go back to a reasonable
amount of time.  (154 -> 0.8 seconds on my Mac)

Fixes #2085.

R=golang-dev, dvyukov, r
CC=golang-dev
https://golang.org/cl/4811045
 2011-07-22 00:55:01 -04:00
Russ Cox
cf9f380499 gc: unsafe.Alignof, unsafe.Offsetof, unsafe.Sizeof now return uintptr 
R=ken2
CC=golang-dev
https://golang.org/cl/4640045
 2011-06-17 16:12:14 -04:00
Russ Cox
591c74ad20 runtime: split non-debugging malloc interface out of debug.go into mem.go 
R=r, dsymonds
CC=golang-dev
https://golang.org/cl/4273045
 2011-03-11 15:09:21 -05:00