Messages in this thread | | | Date | Mon, 22 Feb 1999 11:23:40 +0100 | From | Harald Koenig <> | Subject | Re: revision control for the kernel (BitKeeper) |
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On Feb 22, Larry McVoy wrote:
> I just went and did some timings to make sure gzip is fast enough. > I can uncompress a 1.2 MB file (from .2M -> 1.2M) in 100 milliseconds > (aka an effective rate of 12MB/sec) on a 300Mhz K6. Going the other > way is slower, about 4MB/sec. But that's reasonable, it means that a > reasonably high end machine can keep up with the disk arm.
I know that compression ratio is important, but at least for me (still using a slow PODP83, and maybe may others too) CPU usage is at least as important. did you ever check `lzo' compression from Markus Oberhumer <markus.oberhumer@jk.uni-linz.ac.at> which is much faster than gzip (I'm using it for compressed backups to keep the tape streaming rather than dripping;) which offers in-memory compression library. for more information have a look at
http://wildsau.idv.uni-linz.ac.at/mfx/lzo.html
Harald -- All SCSI disks will from now on ___ _____ be required to send an email notice 0--,| /OOOOOOO\ 24 hours prior to complete hardware failure! <_/ / /OOOOOOOOOOO\ \ \/OOOOOOOOOOOOOOO\ \ OOOOOOOOOOOOOOOOO|// Harald Koenig, \/\/\/\/\/\/\/\/\/ Inst.f.Theoret.Astrophysik // / \\ \ koenig@tat.physik.uni-tuebingen.de ^^^^^ ^^^^^
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