click Results by Tester per Build , cpu 99% in use

[wingking84]

chrome,click results,and Results by Tester per Build.
there is no response.and i excute 'top' on fedora 6,and i see cpu 99% in use
Cpu(s): 0.0%us, 60.5%sy, 39.5%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
5768 nobody 34 19 292m 32m 5520 S 99.5 7.0 7:36.13 mysqld
i wait for 10 minutes,no better.
it's good for other report/results.