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| author | Takoroka <137927095+Takoroka@users.noreply.github.com> | 2026-10-29 05:46:59 -0400 |
|---|---|---|
| committer | Takoroka <137927095+Takoroka@users.noreply.github.com> | 2026-10-29 20:49:47 -0400 |
| commit | 77cad674e5a73cb56ba1ed5d5c97a0d99eb21159 (patch) | |
| tree | c8d27ea10578cc82e718a29049d1f05740c871d9 /src/video_core/gpu.cpp | |
| parent | 9c0f7e8ad45200d09052a368a42d4e21a8d99ec4 (diff) | |
core: pause in guest loops that poll the system counter
Title 1's main thread reads CNTPCT ~17 million times a second while it waits for the
GPU (~23% of its samples are the counter read). On an SMT core that spin takes
resources from the sibling thread, often the GPU thread. Two reads within ~1.7 us of
each other now execute two PAUSE instructions first; the guest sees the same values.
EDEN_NX2_CNTPCT_PAUSE=0 turns it off.
Diffstat (limited to 'src/video_core/gpu.cpp')
0 files changed, 0 insertions, 0 deletions