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Re: [BackupPC-users] backuppc slow rsync speeds
2012-09-18 11:12:29
John Rouillard <rouilj-backuppc AT renesys DOT com> wrote
on 09/17/2012 02:33:34 PM:
> I have another system that is lower power:
>
> 2632652.8 MB at 662.5 minutes or 66MB/s
That's 2.6TB in 11 hours. That is perfectly
acceptable for me. And *way* better than I'm getting.
> the BackupPC system is a 4 core system with Dual-Core AMD Opteron(tm)
> Processor 2216 (2412.400 MHz).
So 2 CPU sockets, each of which is a dual-core processor?
> 16GB of memory with 4x1TB disks. Raid 5
> running 3ware raid card with BBU cache.
So a single block device presented to the OS?
> For the majority of the time
> that backup runs, there are only 3 or so other jobs runing at the
same
> time.
OK.
What about checksum caching and compression?
Thank you *very* much for this information. Your
24-core 48GB monster is just too far away from what I've got to be a useful
comparison. But this one, while quite a bit bigger, is at least *somewhat*
comparable. And you're getting four times the performance, which
is what I would have estimated that my box was capable of doing, but is
not.
Timothy J. Massey
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