A draft of PMU support authored by Pengfei Su#1
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chabbimilind wants to merge 130 commits intomasterfrom
Open
A draft of PMU support authored by Pengfei Su#1chabbimilind wants to merge 130 commits intomasterfrom
chabbimilind wants to merge 130 commits intomasterfrom
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added 30 commits
June 4, 2019 16:40
chabbimilind
commented
Oct 22, 2019
chabbimilind
commented
Oct 22, 2019
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| func perfUnsetMmap(mmapBuf unsafe.Pointer) { | ||
| size := perfMmapSize() | ||
| munmap(mmapBuf, size) |
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Good to check the retval from mmap and print a warning incase of any error.
… file descriptor and 2) in the signal handler, find out the PMU counter that triggers the overflow interrupt
chabbimilind
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Nov 12, 2019
A common idiom for turning an unsafe.Pointer into a slice is to write:
s := (*[Big]T)(ptr)[:n:m]
This technically violates Go's unsafe pointer rules (rule #1 says T2
can't be bigger than T1), but it's fairly common and not too difficult
to recognize, so might as well allow it for now so we can make
progress on #34972.
This should be revisited if #19367 is accepted.
Updates #22218.
Updates #34972.
Change-Id: Id824e2461904e770910b6e728b4234041d2cc8bc
Reviewed-on: https://go-review.googlesource.com/c/go/+/201839
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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