diff options
| -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 |