>I've had two disconcerting experiences lately. Last month,
>we upgraded a Sun from Solaris 2.6 to Solaris 2.7; it got
>faster. Last week, I upgraded my dual 450 MHz PII machine
>from RedHat 5.2 (2.0.36) to RedHat 6.0 (2.2.5-15smp); it got
>slower.
...
>$ time sh -c "bzip2 -1 <random | bzip2 -1 >/dev/null"
>53.01user 0.11system 0:47.52elapsed 111%CPU (0avgtext+0avgdata 0maxresident)k
>0inputs+0outputs (379major+585minor)pagefaults 0swaps
Comparing percent CPU utilization can be misleading between 2.0 and 2.2
SMP kernels. How does the elapsed time compare?
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