6 Commits

Author	SHA1	Message	Date
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