[Novalug] grep question
John Franklin
franklin@elfie.org
Fri May 21 12:18:20 EDT 2010
In what order were these test performed, and did you run them twice to ensure the files were already in cache? File cache misses could account for a lot of the 98s vs 28s timings.
jf
On May 21, 2010, at 8:56 AM, Mike Miller wrote:
> Time | System | Command
> -------|----------|-----------------------------------------------------------
> 93 s | RHEL 4.1 | grep -r '[eE][nN][cC][rR][yY][pP][tT][iI][oO][nN]' .
> 28 s | RHEL 4.1 | grep -i -r 'encryption' .
> 1.2 s | RHEL 4.1 | LC_ALL=C grep -r
> '[eE][nN][cC][rR][yY][pP][tT][iI][oO][nN]' .
> 0.35 s | RHEL 4.1 | LC_ALL=C grep -i -r 'encryption' .
> -------|----------|-----------------------------------------------------------
> 40.3 s | RHEL 5.2 | grep -r '[eE][nN][cC][rR][yY][pP][tT][iI][oO][nN]' .
> 98 s | RHEL 5.2 | grep -i -r 'encryption' .
> 2.1 s | RHEL 5.2 | LC_ALL=C grep -r
> '[eE][nN][cC][rR][yY][pP][tT][iI][oO][nN]' .
> 0.5 s | RHEL 5.2 | LC_ALL=C grep -i -r 'encryption' .
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