Bob Friesenhahn <bfrie...@simple.dallas.tx.us> wrote:
> A tar pipeline still provides terrible file copy performance. Read
> bandwidth is only 26 MB. So I stopped the tar copy and re-tried the
> cpio copy.
>
> A second copy with the cpio results in a read/write data rate of only
> 54.9 MB/s (vs the just experienced 132 MB/s). Performance is reduced
> by more than half. Based on yesterday's experience, that may diminish
> to only 33 MB/s.
"star -copy -no-fsync bs=8m fs=256m -C from-dir . to-dir"
is nearly 40% faster than
"find . | cpio -pdum to-dir"
Did you try to use highly performant software like star?
Jörg
--
EMail:jo...@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin
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joerg.schill...@fokus.fraunhofer.de (work) Blog:
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