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runtime: update description of GODEBUG=gctrace=1

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For #44167.

Change-Id: I2dcd13cbe74e88de00e9fc51f9bd86e604a167df
Reviewed-on: https://go-review.googlesource.com/c/go/+/399300
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com>
Auto-Submit: Emmanuel Odeke <emmanuel@orijtech.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
This commit is contained in:
Leonard Wang 2022-04-10 21:57:39 +08:00 committed by Gopher Robot
parent 8cd6aacf81
commit a10f158d6f
1 changed files with 9 additions and 7 deletions
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16
src/runtime/extern.go
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@ -64,13 +64,15 @@ It is a comma-separated list of name=val pairs setting these named variables:
Currently, it is:
gc # @#s #%: #+#+# ms clock, #+#/#/#+# ms cpu, #->#-># MB, # MB goal, # P
where the fields are as follows:
gc # the GC number, incremented at each GC
@#s time in seconds since program start
#% percentage of time spent in GC since program start
#+...+# wall-clock/CPU times for the phases of the GC
#->#-># MB heap size at GC start, at GC end, and live heap
# MB goal goal heap size
# P number of processors used
gc # the GC number, incremented at each GC
@#s time in seconds since program start
#% percentage of time spent in GC since program start
#+...+# wall-clock/CPU times for the phases of the GC
#->#-># MB heap size at GC start, at GC end, and live heap
# MB goal goal heap size
# MB stacks estimated scannable stack size
# MB globals scannable global size
# P number of processors used
The phases are stop-the-world (STW) sweep termination, concurrent
mark and scan, and STW mark termination. The CPU times
for mark/scan are broken down in to assist time (GC performed in