Update mtscomp.py #17
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Defaults the maximum number of threads to 4.
rossant
reviewed
Mar 18, 2025
| @@ -53,7 +53,7 @@ | |||
| comp_level=-1, # zlib compression level | |||
| do_spatial_diff=False, # benchmarks seem to show no compression performance benefits | |||
| do_time_diff=True, | |||
| n_threads=mp.cpu_count(), | |||
| n_threads=min(mp.cpu_count() - 1, 4), # this is I/O bound, 4 threads max is plenty on large CPUs | |||
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maybe add a max(0, ...) in the (incredible) case where there is only 1 CPU?
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Defaults the maximum number of threads to 4.
On some servers, mtscomp hogs all of the disk bandwidth and it is not clear that having that many concurrent threads helps !