Bug #56933 InnoDB does more writes in 5.5 than in 5.1 on buffer pool challenged workloads
Submitted: 22 Sep 2010 13:26 Modified: 9 Dec 2010 22:43
Reporter: Mikhail Izioumtchenko Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: InnoDB storage engine Severity:S2 (Serious)
Version:5.5 OS:Any
Assigned to: Inaam Rana CPU Architecture:Any

File: Maximum allowed size is 50MB.
Description:
Privacy:

If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.

To split a large file:

[22 Sep 2010 13:37] Mikhail Izioumtchenko
checkpoint lag graph

Attachment: 29_0,1-dbstats.out-lag-Checkpoint.lag-0.png (image/png, text), 6.40 KiB.

[22 Sep 2010 13:39] Mikhail Izioumtchenko
modified db pages

Attachment: 29_0,1-dbstats.out-mdbp-Modified.db.pages-4.png (image/png, text), 5.81 KiB.

[22 Sep 2010 13:41] Mikhail Izioumtchenko
tps

Attachment: 29_0,1-mix.log-tps-n.png (image/png, text), 5.82 KiB.

[22 Sep 2010 13:42] Mikhail Izioumtchenko
vmstat blocks out

Attachment: 29_0,1-vmstat.out-bo-10.png (image/png, text), 4.92 KiB.