Testing the patch took much longer than I anticipated due to pre-4.1-kernels
being "too risky" for use on our servers, but now it's done and I can say:
This patch, as integrated in linux-4.1, has successfully removed the lags.
Thanks!
Regards,
Lutz Vieweg
On 04/22/2015 06:09 PM, Lutz Vieweg wrote:
On 04/13/2015 09:52 PM, Chris Mason wrote:
Large filesystems with lots of block groups can suffer long stalls during
commit while we create and send down all of the block group caches. The
more blocks groups dirtied in a transaction, the longer these stalls can be.
Some workloads average 10 seconds per commit, but see peak times much higher.
Since we see this problem very frequently on some shared development servers,
I will try to install this ASAP.
Meanwhile, can anybody already tell success stories about successfully removing
lags by this patch?
Regards,
Lutz Vieweg
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