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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2019-01-15 01:16:17 +0100 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2019-01-15 01:16:17 +0100 |
| commit | 0937ec41b2a52d346bd91365e1f6b54da1c21d51 (patch) | |
| tree | 1403c84dcf836b5e5c17ae049314deef8ad87d96 | |
| parent | 1750f279a7919606cdee58e10f27df4ec4e78cf0 (diff) | |
Note the 32bit vs 64bit difference
| -rw-r--r-- | faq/slow.mdwn | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/faq/slow.mdwn b/faq/slow.mdwn index 80c4ed00..ffa20fe3 100644 --- a/faq/slow.mdwn +++ b/faq/slow.mdwn @@ -18,7 +18,10 @@ completely usable. Take care when running the Hurd in fully-virtualized machines: virtualization software use ugly heuristics to make Linux run faster, which will not work on the Hurd (or BSD, etc.) so comparisons in virtualized environments do not really -hold. +hold. Also take care of not comparing Hurd (which is currently 32bit) with a +64bit Linux execution: 64bit has *much* more computational and optimization +possibilities than 32bit. At least, use -m32 to build a 32bit Linux version of a +test for comparison. The main reason for slowness is *not* because of the overhead of RPCs. It's mostly simply because less care has been done on implementing what makes Linux |