stan/jdk-24
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

8339651: ShenandoahPacer::setup_for_mark, ShenandoahPacer::setup_for_updaterefs and ShenandoahPacer::setup_for_evac runtime error: division by zero

Browse Source 
Reviewed-by: shade, mli
This commit is contained in:
William Kemper 2024-10-10 18:45:10 +00:00
parent 97ee8bbda2
commit 06f34d7ed2
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/hotspot/share/gc/shenandoah/shenandoahPacer.cpp
View File

@ -65,6 +65,7 @@ void ShenandoahPacer::setup_for_mark() {
size_t non_taxable = free * ShenandoahPacingCycleSlack / 100;
size_t taxable = free - non_taxable;
taxable = MAX2<size_t>(1, taxable);
double tax = 1.0 * live / taxable; // base tax for available free space
tax *= 1; // mark can succeed with immediate garbage, claim all available space
@ -88,6 +89,7 @@ void ShenandoahPacer::setup_for_evac() {
size_t non_taxable = free * ShenandoahPacingCycleSlack / 100;
size_t taxable = free - non_taxable;
taxable = MAX2<size_t>(1, taxable);
double tax = 1.0 * used / taxable; // base tax for available free space
tax *= 2; // evac is followed by update-refs, claim 1/2 of remaining free
@ -112,6 +114,7 @@ void ShenandoahPacer::setup_for_updaterefs() {
size_t non_taxable = free * ShenandoahPacingCycleSlack / 100;
size_t taxable = free - non_taxable;
taxable = MAX2<size_t>(1, taxable);
double tax = 1.0 * used / taxable; // base tax for available free space
tax *= 1; // update-refs is the last phase, claim the remaining free