On 3/3/2005 8:36 AM, Bengt-Arne Fjellner wrote:
> With boinc running [EMAIL PROTECTED] at lowest priority ( uses 100% cpu but
> yields easily)
> simple pipes takes a long time.
> Example: from a bash prompt
> echo hello|grep -v xyz
> with boinc running and 1.5.13-1 takes about 7 seconds.
> if i stop boinc it takes parts of a second.
> after downgrade to 1.5.12-1 with boinc running: parts of a second.
>
> i have seen this on two different computers one HT one normal.
I was able to reproduce this without using BOINC.
I started two cmd.exe shells. In the first shell, I ran:
sh -c 'nice -20 sh -c "while true; do :; done"'
Then, in the second cmd shell, I ran "sh" to start an ash shell I typed:
echo hello | grep -v xyz
This takes several seconds to complete on a non-HT machine. It runs
quickly with 1.5.12.
I also noticed that if I ran
sh -c 'echo hello | grep -v xyz'
from a cmd.exe shell, it completed quickly with 1.5.13.
The latest 20050303 snapshot fixed this problem for me. It also fixed
the problem I was having with BOINC.
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