Re: [BackupPC-users] BackupPC File::RsyncP issues
2009-08-19 08:37:54
Tino Schwarze wrote:
>
>> > first of all, where are you seeing these figures, and what are you
>>> measuring?
>> Rather than try to convince you of my competence, I will offer up these
>> benchmarks for the exact same endpoint machines and file (a 2 gigabyte
>> uncompressable *.avi file that did NOT exist on the target):
>>
>> Unix rsync->Unix rsync: 60MB/s
>> Windows SMB->Unix smbclient: 65MB/s
>> Windows rsyncd->Unix rsync: 5MB/s
>> Windows rsyncd->BackupPC_dump: 5MB/s
>>
>> As you can see, something is now clearly wrong with the windows rsyncd
>> source. I confirmed this by profiling actual rsync in Unix and saw that
>> 77% of its time was spent waiting for data (which mirrors exactly what
>> File::RsyncP::pollsys was doing, wasting 77% of its time waiting for
>> data). So the problem isn't BackupPC, it's windows rsyncd.
>
> I would take a look at a network traffic dump - maybe something is bad
> there? More suspects: Windows firewall, some other firewall inbeteween?
> Did you try Windows rsyncd -> Windows rsync (to rule out some strange
> Linux vs. Windows network stack issue)?
The usual killer with windows targets is an on-access virus scanner, but that
doesn't explain the SMB speed unless there is some kind of exception there.
--
Les Mikesell
lesmikesell AT gmail DOT com
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- [BackupPC-users] BackupPC File::RsyncP issues, Jim Leonard
- Re: [BackupPC-users] BackupPC File::RsyncP issues, Jim Leonard
- Re: [BackupPC-users] BackupPC File::RsyncP issues, Holger Parplies
- Re: [BackupPC-users] BackupPC File::RsyncP issues, Jim Leonard
- Re: [BackupPC-users] BackupPC File::RsyncP issues, Jim Leonard
- Re: [BackupPC-users] BackupPC File::RsyncP issues, Tino Schwarze
- Re: [BackupPC-users] BackupPC File::RsyncP issues, Jim Leonard
- Re: [BackupPC-users] BackupPC File::RsyncP issues, Tino Schwarze
- Re: [BackupPC-users] BackupPC File::RsyncP issues, Les Mikesell
- Re: [BackupPC-users] BackupPC File::RsyncP issues, Michael Stowe
- Re: [BackupPC-users] BackupPC File::RsyncP issues, Jacob Hydeman
- Re: [BackupPC-users] BackupPC File::RsyncP issues, Les Mikesell
- Re: [BackupPC-users] BackupPC File::RsyncP issues, Jacob Hydeman
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