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Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
Posted by: Ben Wallach
Date: January 28, 2013 11:13AM

Update:
Scratch what I said in pevious post.
We are seeing lower write speeds using "dd".

old master = ~104 MB/sec
new master = ~71 MB/sec
new slave = ~94 MB/sec

next we will examine drive settings.
if correct, we will replace drives..

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5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
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Ben Wallach
January 23, 2013 06:44PM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
1933
Scott Nemes
January 24, 2013 10:59AM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
2242
Ben Wallach
January 24, 2013 12:16PM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
1792
Scott Nemes
January 24, 2013 01:41PM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
1796
Ben Wallach
January 24, 2013 02:29PM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
1706
Scott Nemes
January 24, 2013 03:14PM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
1993
Ben Wallach
January 24, 2013 03:36PM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
1928
Scott Nemes
January 24, 2013 03:44PM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
2035
Ben Wallach
January 25, 2013 09:28AM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
1877
Scott Nemes
January 25, 2013 09:51AM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
2084
Rick James
January 26, 2013 12:40AM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
1904
Ben Wallach
January 26, 2013 09:57AM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
2079
Rick James
January 26, 2013 01:35PM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
1815
Scott Nemes
January 26, 2013 02:25PM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
2190
Ben Wallach
January 26, 2013 03:36PM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
1784
Rick James
January 26, 2013 06:02PM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
2040
Ben Wallach
January 26, 2013 07:18PM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
1952
Rick James
January 26, 2013 09:33PM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
1697
Ben Wallach
January 27, 2013 11:01AM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
1833
Scott Nemes
January 27, 2013 12:44PM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
1817
Ben Wallach
January 27, 2013 03:40PM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
1742
Ben Wallach
January 28, 2013 11:13AM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
1689
Ben Wallach
February 01, 2013 03:35PM
Re: 5.1 to 5.5 upgrade causes significant write slowdown (MyISAM + indexes)
1791
Scott Nemes
February 01, 2013 03:37PM


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