[valgrind] [Bug 446103] Memcheck: `--track-origins=yes` causes extreme slowdowns for large mmap/munmap

2021-12-07 Thread Julian Seward
https://bugs.kde.org/show_bug.cgi?id=446103 Julian Seward changed: What|Removed |Added Resolution|--- |FIXED Status|REPORTED

[valgrind] [Bug 446103] Memcheck: `--track-origins=yes` causes extreme slowdowns for large mmap/munmap

2021-12-03 Thread Julian Seward
https://bugs.kde.org/show_bug.cgi?id=446103 --- Comment #1 from Julian Seward --- Created attachment 144170 --> https://bugs.kde.org/attachment.cgi?id=144170=edit Proposed patch (needs commit message) Attached is a proposed fix. It makes gigabyte-sized SARPs about 3 x faster, when