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runtime: GOGC=0 should override heap minimum #10681

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rsc opened this issue May 4, 2015 · 2 comments
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runtime: GOGC=0 should override heap minimum #10681

rsc opened this issue May 4, 2015 · 2 comments
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Go1.5

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@rsc
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rsc commented May 4, 2015

GOGC=0 means basically GC after every allocation. It's very useful for debugging. It is effectively disabled for small heaps due to the heapminimum (4MB). We should override the heapminimum when GOGC=0 - you only set that when you really want lots of GCs.

@RLH @aclements
@rsc rsc added this to the Go1.5 milestone May 4, 2015
@RLH
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RLH commented May 5, 2015

This is going to be fixed by setting minimum heap size to GOGC/100 * 4Mbytes.

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CL https://golang.org/cl/9814 mentions this issue.

@RLH RLH closed this as completed in b6e178e May 7, 2015
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