Commit graph

3 commits

Author SHA1 Message Date
Dmitriy Vyukov
1fa7029425 runtime: combine small NoScan allocations
Combine NoScan allocations < 16 bytes into a single memory block.
Reduces number of allocations on json/garbage benchmarks by 10+%.

json-1
allocated                 8039872      7949194      -1.13%
allocs                     105774        93776     -11.34%
cputime                 156200000    100700000     -35.53%
gc-pause-one              4908873      3814853     -22.29%
gc-pause-total            2748969      2899288      +5.47%
rss                      52674560     43560960     -17.30%
sys-gc                    3796976      3256304     -14.24%
sys-heap                 43843584     35192832     -19.73%
sys-other                 5589312      5310784      -4.98%
sys-stack                  393216       393216      +0.00%
sys-total                53623088     44153136     -17.66%
time                    156193436    100886714     -35.41%
virtual-mem             256548864    256540672      -0.00%

garbage-1
allocated                 2996885      2932982      -2.13%
allocs                      62904        55200     -12.25%
cputime                  17470000     17400000      -0.40%
gc-pause-one            932757485    925806143      -0.75%
gc-pause-total            4663787      4629030      -0.75%
rss                    1151074304   1133670400      -1.51%
sys-gc                   66068352     65085312      -1.49%
sys-heap               1039728640   1024065536      -1.51%
sys-other                38038208     37485248      -1.45%
sys-stack                 8650752      8781824      +1.52%
sys-total              1152485952   1135417920      -1.48%
time                     17478088     17418005      -0.34%
virtual-mem            1343709184   1324204032      -1.45%

LGTM=iant, bradfitz
R=golang-codereviews, dave, iant, rsc, bradfitz
CC=golang-codereviews, khr
https://golang.org/cl/38750047
2014-01-24 22:35:11 +04:00
Ian Lance Taylor
d12b08d228 test: disable a couple of precise GC tests for gccgo
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/41610043
2013-12-12 17:13:27 -08:00
Dmitriy Vyukov
fd23958f49 runtime: fix memory leaks due to defers
fn can clearly hold a closure in memory.
argp/pc point into stack and so can hold
in memory a block that was previously
a large stack serment.

R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/10784043
2013-07-01 17:36:08 -04:00