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Paolo Ornati wrote: > On Saturday 28 February 2004 15:52, Alex Bennee wrote: > >>>>At that point, mkisofs is probably running into a bazillion >>>>small files, in subdirectories all over the place. >>>> >>>>Because a disk seek + track read takes 10ms, it's simply not >>>>possible to read more than maybe 100 of these small files a >>>>second, so mkisofs can't keep up. >>> >>>No... mkfs is reading only ONE big file ( ~ 700 MB )! >>> >>>And my system shouldn't be so slow: >>> >>>CPU: AMD Duron 750 >>>RAM: 128 MB PC100 >>>HD: 7200 RPM udma 4 >>>File System: ResiserFS >> >>Could this be related to your low(ish) physical memory and the need swap >>stuff in and out? Maybe you could look at the vmstat output as you run >>the two cases? > > > No... swap is never touched ! > > But I think to have found where the problem is: > > if I only create an ISO image of 672.4 MB I must wait more then 5 minutes... > this means about 2.2 MB/s ! How full is your filesystem on average? If it has been around 90% or more, you might be having trouble with fragmentation. - 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/ | ||||||||||||
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