diff options
Diffstat (limited to 'src/runtime/mgcmark.go')
| -rw-r--r-- | src/runtime/mgcmark.go | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/runtime/mgcmark.go b/src/runtime/mgcmark.go index 00b96fd00b..aa7f7a7769 100644 --- a/src/runtime/mgcmark.go +++ b/src/runtime/mgcmark.go @@ -393,10 +393,15 @@ func gcAssistAlloc(gp *g) { } // Compute the amount of scan work we need to do to make the - // balance positive. We over-assist to build up credit for - // future allocations and amortize the cost of assisting. - debtBytes := -gp.gcAssistBytes + gcOverAssistBytes + // balance positive. When the required amount of work is low, + // we over-assist to build up credit for future allocations + // and amortize the cost of assisting. + debtBytes := -gp.gcAssistBytes scanWork := int64(gcController.assistWorkPerByte * float64(debtBytes)) + if scanWork < gcOverAssistWork { + scanWork = gcOverAssistWork + debtBytes = int64(gcController.assistBytesPerWork * float64(scanWork)) + } retry: // Steal as much credit as we can from the background GC's |