| commit | 17722c21e754f25b7694b350cdae044b9729776c | [log] [tgz] |
|---|---|---|
| author | Than McIntosh <thanm@google.com> | Sat Nov 02 09:36:28 2019 -0400 |
| committer | Than McIntosh <thanm@google.com> | Fri Nov 08 16:35:06 2019 +0000 |
| tree | 89823b0be12e1cc41a291300c8226b455704d789 | |
| parent | b4245ea54432bcdc92dc5e0e84b07408f5ee5479 [diff] |
[dev.link] cmd/link/internal/loader: reduce ABI alias postprocessing overhead In loadObjFull when populating the sym.Reloc vector for live symbols, avoid using the loader.SymType() method to determine if a relocation targets an ABI alias; since invoking loader.SymType requires a global-to-local index translation and a read from the object file. Instead just look at the target symbol itself, which has already been created at this point. Hyperkube performance numbers for this change: name old time/op new time/op delta RelinkHyperkube 29.9s ± 2% 29.2s ± 3% -2.42% (p=0.000 n=20+20) RelinkWithoutDebugHyperkube 22.0s ± 3% 21.4s ± 3% -2.58% (p=0.000 n=20+20) Change-Id: Ib7696d8760dd0485240246d6d640668fbf451d71 Reviewed-on: https://go-review.googlesource.com/c/go/+/205257 Run-TryBot: Than McIntosh <thanm@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Jeremy Faller <jeremy@golang.org>
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