Messages in this thread | | | Date | Sun, 14 Jul 2002 21:42:50 +0200 | From | Tomas Szepe <> | Subject | Re: IDE/ATAPI in 2.5 |
| |
> > > > A Pentium 1200 running Linux-2.5.25 (ext3) results in: > > > > > > > > # star -xp -time < rock.tar.bz2 > > > > star: WARNING: Archive is bzip2 compressed, trying to use the -bz option. > > > > star: 10372 blocks + 1536 bytes (total of 106210816 bytes = 103721.50k). > > > > star: Total time 3190.483sec (32 kBytes/sec) > > > > 53:10.490r 12.299u 2970.099s 93% 0M 0+0k 0st 0+0io 4411pf+0w > > > > > > > > You see, during the 53:20, the machine is only 7% idle! > > > > > > A Pentium 1200, eh? > > > More like Pentium 120 or star just doesn't cut it. > > > > Now I'm actually pretty sure you meant 386DX/33! > > > > I don't know whom you're trying to fool, but even my P2/233 > > can get the work done in under 5 minutes: > > > > kala@hubert:/tmp$ time tar xjf rock.tar.bz2 > > > > real 4m50.598s > > user 0m36.700s > > sys 1m51.860s > > > > Linux 2.4.19-pre10-ac2, reiserfs 3.6. > > Aha, but reiserfs's directories are indexed, are they not? Whereas > ext3's directories are flat and require a linear search for lookups > and modifications. This may be what Joerg's example highlights.
Unfortunately, I don't have an ext3 partition handy to perform a quick test, but the following Joerg's accusation has been invalidated nonetheless:
> Solaris and FreeBSD put all the effort into one filesystem trying to make > it as good as possible. In Linux, it seems that nobody prooved the overall > concept of the kernel.
If that's the case, how come a Linux-powered Pentium 233 can do in 5 minutes for what a Solaris-powered Pentium 800 needs 7 minutes?
I believe Joerg owes a big big apology to Al Viro here.
T. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |