[DRBD-user] drbd-0.7.0 with linux-2.4. slow?

Bernd Schubert bernd-schubert at web.de
Fri Jul 30 01:34:12 CEST 2004

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


> (latency figures...)

Data from a nfs-mounted directory:


1.) async exported:

N:          1024
min:        1203
avg:        1529
max:       37856
N:          1024
min:       91182
avg:      110153
max:    18805320
N:           256
min:      364772
avg:      384725
max:     4927510
N:          1024
min:         983
avg:        1494
max:        1944
N:          1024
min:       91151
avg:      108411
max:    17054200
N:           256
min:      366288
avg:      371261
max:     1373654

2.) sync exported:

N:          1024
min:        1810
avg:       17103
max:      695349
N:          1024
min:       95326
avg:      238704
max:      989322
N:           256
min:      495749
avg:      962792
max:     2502739
N:          1024
min:        3957
avg:        4292
max:      224765
N:          1024
min:       94015
avg:      410282
max:     1587899
N:           256
min:      509567
avg:     1650030
max:     3948684


>
> > I guess that we have to much memory for this test (3GB), so the numbers
> > are slightly unrealistic [for drbd-unconnected iozone-async ...]
>
> do they change with -c -e ?

Hmm, our backup just started so I stop further testing.


Cheers,
	Bernd



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