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Commit Graph

12 Commits

Author SHA1 Message Date
Russ Cox
d324f2143b runtime: parallelize garbage collector mark + sweep
Running test/garbage/parser.out.

On a 4-core Lenovo X201s (Linux):
31.12u 0.60s 31.74r 	 1 cpu, no atomics
32.27u 0.58s 32.86r 	 1 cpu, atomic instructions
33.04u 0.83s 27.47r 	 2 cpu

On a 16-core Xeon (Linux):
33.08u 0.65s 33.80r 	 1 cpu, no atomics
34.87u 1.12s 29.60r 	 2 cpu
36.00u 1.87s 28.43r 	 3 cpu
36.46u 2.34s 27.10r 	 4 cpu
38.28u 3.85s 26.92r 	 5 cpu
37.72u 5.25s 26.73r	 6 cpu
39.63u 7.11s 26.95r	 7 cpu
39.67u 8.10s 26.68r	 8 cpu

On a 2-core MacBook Pro Core 2 Duo 2.26 (circa 2009, MacBookPro5,5):
39.43u 1.45s 41.27r 	 1 cpu, no atomics
43.98u 2.95s 38.69r 	 2 cpu

On a 2-core Mac Mini Core 2 Duo 1.83 (circa 2008; Macmini2,1):
48.81u 2.12s 51.76r 	 1 cpu, no atomics
57.15u 4.72s 51.54r 	 2 cpu

The handoff algorithm is really only good for two cores.
Beyond that we will need to so something more sophisticated,
like have each core hand off to the next one, around a circle.
Even so, the code is a good checkpoint; for now we'll limit the
number of gc procs to at most 2.

R=dvyukov
CC=golang-dev
https://golang.org/cl/4641082
2011-09-30 09:40:01 -04:00
Rob Pike
eea18d959e log: rename Exit* to Fatal*
This aligns the naming scheme with the testing package and
also lets govet work on more logging calls.

R=rsc
CC=golang-dev
https://golang.org/cl/4001048
2011-02-01 12:47:35 -08:00
Russ Cox
bcd910cfe2 runtime: add per-pause gc stats
R=r, r2
CC=golang-dev
https://golang.org/cl/3980042
2011-01-19 13:41:42 -05:00
Russ Cox
6f5f558c10 test/garbage/parser: sync with recent parser changes
R=gri
CC=golang-dev
https://golang.org/cl/2144042
2010-09-07 09:55:05 -04:00
Russ Cox
da392d9136 build: no required environment variables
R=adg, r, PeterGo
CC=golang-dev
https://golang.org/cl/1942044
2010-08-18 10:08:49 -04:00
Russ Cox
735356ca9a test/garbage: do not try to parse package bignum, which is gone.
Fixes #1023.

R=gri
CC=golang-dev
https://golang.org/cl/1968043
2010-08-16 13:31:31 -07:00
Rob Pike
a621a7ef74 delete pkg/once
R=rsc
CC=golang-dev
https://golang.org/cl/1995041
2010-08-13 12:53:27 +10:00
Evan Shaw
93c750d80a gc benchmark: Update package list
Some old packages on the list were preventing this benchmark from working.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/820045
2010-04-19 15:41:40 -07:00
Christopher Wedgwood
d80c78b62f test: minor updates to avoid bitrot
R=rsc, r
CC=golang-dev
https://golang.org/cl/854046
2010-04-12 18:10:29 -07:00
Rob Pike
325cf8ef21 delete all uses of panicln by rewriting them using panic or,
in the tests, println+panic.
gofmt some tests too.

R=rsc
CC=golang-dev
https://golang.org/cl/741041
2010-03-24 16:46:53 -07:00
Russ Cox
d3be2e3e0a add simple garbage collector benchmarks to dashboard
R=agl1
CC=golang-dev
https://golang.org/cl/207043
2010-02-09 13:33:00 -08:00
Russ Cox
e4f06812c5 runtime: instrument malloc + garbage collector.
add simple garbage collection benchmark.

R=iant
CC=golang-dev
https://golang.org/cl/204053
2010-02-08 14:32:22 -08:00