Re: Measuring MySQL resources consumption on Linux

#
# calculate the average, avoiding any division by zero traps
#
my $avg_cpu_load = $total_cpu_load ? $total_cpu_load / $active_pid_num
+ : 0 ;
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I'd think if you want to avoid division by zero, you'd need to check the denominator for zero-ness rather than the numerator. That is:

my $avg_cpu_load = $active_pid_num ? $total_cpu_load / $active_pid_num
+ : 0;
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Or am I misunderstanding something here?

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Re^2: Measuring MySQL resources consumption on Linux by Anonymous Monk on Aug 22, 2008 at 15:45 UTC
if there is a tee in my.cnf, demo mysql tee = mysql.log mysql -u read -pread -N -e 'show variables like "pid_file"' get: Logging to file 'mysql.log' pid_file /path/to/var/mysql.pid mysqlresources buddy read the first line set pid_file="to" reply to: xiaozhiwen@gmail.com	[reply]