Dan Nelson wrote:
In the last episode (Nov 08), Randall Hyde said:
It appears that character-at-a-time file I/O is *exceptionally* slow.
... reasonable, though not stellar, performance under
Windows and Linux. However, with the port to FreeBSD I'm seeing a
three-orders-of-magnitude performance loss. ...
What timings does
"dd if=/usr/include/sys/socket.h of=/dev/null ibs=1 obs=64k" report?
It takes about .4 sec on my non-idle dual pIII-900 system. Try
truss'ing your program as it runs; maybe the program is doing some
extra syscalls you aren't aware of?
You should also carefully do an strace or similar on
Windows and Linux as well. You may find that you're
doing a system call per byte on FreeBSD but not on
those other systems.
Tim Kientzle
_______________________________________________
freebsd-hackers@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
To unsubscribe, send any mail to "[EMAIL PROTECTED]"
