Small optimizations to combine#2032
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a) Avoid copying lists in executemany_void: while some callers provide an iterator, others were already providing a list and in that case we had to copy it b) Avoid unpacking and re-packing contexts In total this shaves about 10% of the combine time in pyca/cryptography's CI
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Thanks! |
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My pleasure! I have an idea for a bigger perf win, but we'll see if it pans
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…On Sun, Aug 17, 2025, 12:50 PM Ned Batchelder ***@***.***> wrote:
Merged #2032 <#2032> into master.
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Combining has had a number of performance problems over the years. Looking forward to what you have. |
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The core idea is "avoid going sqlite3 -> python -> sqlite3" by using |
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This is now released as part of coverage 7.10.5. |
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a) Avoid copying lists in executemany_void: while some callers provide an iterator, others were already providing a list and in that case we had to copy it
b) Avoid unpacking and re-packing contexts
In total this shaves about 10% of the combine time in pyca/cryptography's CI