| commit | 6b7114b9e5d872fe981a5c988915e4440f8df59c | [log] [tgz] |
|---|---|---|
| author | sergey <sngasuan@gmail.com> | Sun Feb 24 14:26:55 2019 +0300 |
| committer | Brad Fitzpatrick <bradfitz@golang.org> | Mon Apr 15 19:30:44 2019 +0000 |
| tree | 9c6506904fd5e6457b95217d4a4d04fdb0361722 | |
| parent | 2c802e9980427a1d47384b222dcbf4c9b4e84944 [diff] |
net/http: speed up parsing of Cookie headers Parse the headers without splitting them upfront to reduce memory allocations. For non-pathological Cookie headers we can make a good estimate of the number of cookies in there and preallocate the slice of cookies name old time/op new time/op delta CookieString-4 1.73µs ± 2% 1.70µs ± 5% ~ (p=0.841 n=5+5) ReadSetCookies-4 6.09µs ± 3% 5.93µs ± 3% ~ (p=0.095 n=5+5) ReadCookies-4 7.63µs ± 1% 6.41µs ± 4% -15.99% (p=0.008 n=5+5) name old alloc/op new alloc/op delta CookieString-4 360B ± 0% 360B ± 0% ~ (all equal) ReadSetCookies-4 976B ± 0% 976B ± 0% ~ (all equal) ReadCookies-4 2.17kB ± 0% 1.84kB ± 0% -15.13% (p=0.008 n=5+5) name old allocs/op new allocs/op delta CookieString-4 5.00 ± 0% 5.00 ± 0% ~ (all equal) ReadSetCookies-4 15.0 ± 0% 15.0 ± 0% ~ (all equal) ReadCookies-4 16.0 ± 0% 11.0 ± 0% -31.25% (p=0.008 n=5+5) Change-Id: Ica1ca0d40c0d8d275134d1dfafb73f1082115826 Reviewed-on: https://go-review.googlesource.com/c/go/+/163617 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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