[MacOS] Fishnet performance drops to single-core after system suspension
PaulHobbs opened this issue · 1 comments
PaulHobbs commented
I run Fishnet on my MacOS desktop with 8 cores. It normally gets about 10,000-12,000 knps when running with a 6 thread configuration.
I have noticed that when I leave it running for a long time and come back after suspending my system and resuming, it is performing at single-core performance (1,800 knps).
Here's some example logs (game links excluded for privacy):
><> fishnet/2.2.3: 1762 knps (nnue), 2.073 batches, 108.309 positions, 235.686.579.212 total nodes
[==== | ] 6 cores, 5 queued, latest: ...
[==== | ] ... finished (1775 knps)
><> fishnet/2.2.3: 1763 knps (nnue), 2.074 batches, 108.382 positions, 235.850.880.982 total nodes
><> fishnet/2.2.3: 1763 knps (nnue), 2.074 batches, 108.382 positions, 235.850.880.982 total nodes
[=====|===========> 6 cores, 36 queued, latest: ...
><> fishnet/2.2.3: 1763 knps (nnue), 2.074 batches, 108.382 positions, 235.850.880.982 total nodes
[=====|===========> 6 cores, 30 queued, latest: ...
### Stopping soon. CTRL-C again to abort pending batches ...
[==== | ] 6 cores, 5 queued, latest: ...
[==== | ] ... finished (1367 knps)
W: Aborting batch e0e5yLLZ.
8:46 (~/Desktop) >> nice -n 20 ./fishnet-x86_64-apple-darwin
# _________ . .
# (.. \_ , |\ /|
# \ O \ /| \ \/ /
# \______ \/ | \ / _____ _ _ _ _ _
# vvvv\ \ | / | | ___(_)___| |__ | \ | | ___| |_
# \^^^^ == \_/ | | |_ | / __| '_ \| \| |/ _ \ __|
# `\_ === \. | | _| | \__ \ | | | |\ | __/ |_
# / /\_ \ / | |_| |_|___/_| |_|_| \_|\___|\__| 2.2.3
# |/ \_ \| /
# \________/ Distributed Stockfish analysis for lichess.org
### Checking configuration ...
Endpoint: https://lichess.org/fishnet
Backlog: Join queue if user backlog >= 0ns or system backlog >= 0ns
CPU features: POPCNT | SSE | SSE2 | SSSE3 | SSE41 | AVX2 | BMI2 | INTEL | SF_SSE2 | SF_SSSE3 | SF_SSE41_POPCNT | SF_AVX2 | SF_BMI2
Engine: stockfish-macos-x86-64-bmi2 (for GPLv3, run: ./fishnet-x86_64-apple-darwin license)
Cores: 6
### Running (CTRL-C to stop) ...
[ | ] 6 cores, 0 queued, latest: ...
[ | ] ... finished (10076 knps)
[ | ] 6 cores, 1 queued, latest: ...
><> fishnet/2.2.3: 3707 knps??? (nnue), 1 batches, 67 positions, 136.068.643 total nodes
[ | ] 6 cores, 0 queued, latest: ...
[ | ] ... finished (horde, no nnue, 7238 knps)
[ | ] 6 cores, 0 queued, latest: ...
[ | ] ... finished (6845 knps)
[=====|===========> 6 cores, 66 queued, latest: ...
niklasf commented
When this happens again ... can you please verify that (when busy) it still uses all cores? I suspect it's an issue with the reported numbers, not what's actually happening.