Check the size of the magic files on your FreeBSD and Linux boxen.
file was never really designed to be efficient. FreeBSD's magic
file is /usr/share/misc/magic - around 164K.
-Matt
:
:While trying to port amavis, the virusscanner for mail,
: http://aachalon.de/AMaViS/amavis-0.2.0-pre4.tar.gz ) I noticed it used the
:file(1) several times for each file, and it took rather long time, causing
:bb to report red for high CPU-load each time I collected a batch of mail.
:
:So I compared it with a Linux box:
:
:My 60MHz Pentium, FreeBSD
:
:time file /usr/home/leif/vnc-3.3.2r
:/usr/home/leif/vnc-3.3.2r3_unixsrc.tgz: gzip compressed data, deflated,
:original filename, last modified: Thu Jan 21 19:23:21 1999
:
:real 0m1.237s
:user 0m0.758s
:sys 0m0.394s
:
:133MHz Pentium II, Linux
:
:time file vnc-3.3.2r3_unixsrc.tgz
:vnc-3.3.2r3_unixsrc.tgz: gzip compressed data, deflated, original filename,
:last modified: Thu Jan 21 19:23:21 1999, os: Unix
:
:real 0m0.036s
:user 0m0.010s
:sys 0m0.030s
:
:While I realise 60MHz is less than 133MHz, a factor 34 in difference of real
:time seems suspect.
:
:The magic file is different, but almost the same size.
:
:Why is FreeBSD's file so much slower?
:
:Leif
:
:
:
:
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:
Matthew Dillon
<[EMAIL PROTECTED]>
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