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The gc implementation has had precise GC for a while now, so we can
enable these tests more broadly.
Confirmed that they still fail with gccgo 10.2.1.
Change-Id: Ic1c0394ab832024a99e34163c422941a3706e1a2
Reviewed-on: https://go-review.googlesource.com/c/go/+/281542
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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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
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R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/41610043
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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
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