40% slowdown with dynamic /bin/sh
gallatin at cs.duke.edu
Mon Nov 24 19:06:19 PST 2003
M. Warner Losh writes:
> In message: <16322.47726.903593.393976 at grasshopper.cs.duke.edu>
> I'm just saying that most of the developers I'm talking to on IRC say
> this tread is insane, has no content and they are blowing it off
> because of that. A concrete, real benchmark will go a long way
> towards changing that. Until then, you are as good as kill filed.
How about Gordon's initial bootstone, which increased by 25%?
And I just did a "make clean" run in /usr/ports/archivers (by manually
mv'ing a static and dynamic sh to /bin in turn):
static: 96.63 real 53.45 user 39.27 sys
dynamic: 112.42 real 55.51 user 51.62 sys
The wall clock is bad (16% worse) and the system time is worse (31%).
1) Microbenchmark: 40% worse
2) Bootstone(*): 25% worse
3) Ports: 16% worse
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