Opening Tables scalability
I was restarting MySQL on box with 50.000 of Innodb tables and again it took couple of hours to reach decent performance because of “Opening Tables” stage was taking long. Part of the problem is Innodb is updating stats on each table open which is possibly expensive operation, but really it is only great test case for general MySQL problem. During warmup process I noticed I get very low CPU usage
Journal of miyagawa (1653) - Perl UTF-8 and latin-1 woes
I've been thinking that I fully understand the Perl UTF-8 flag and Unicode stuff very well, with the professional experience handling I18N and L10N issues with Perl for more than 5 years.But it turns out that I still have something to learn, or things I've learned recently at least.So here's the code. #!/usr/bin/perl use strict; use warnings; use Encode; use File::Temp qw(tempfile); use XML::RSS;
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