Comment # 3 on bug 1168089 from Jan Kara

Results before/after the commit b1b4705d54abedfd69dcdf42779c521aa1e0fbd3 on
marvin8 with performance cpufreq governor:

Hmean     disk-1       4166.67 (   0.00%)     4126.55 (  -0.96%)
Hmean     disk-25    242718.45 (   0.00%)   195822.45 * -19.32%*
Hmean     disk-49    472668.81 (   0.00%)   377892.03 * -20.05%*
Hmean     disk-73    640350.88 (   0.00%)   527710.84 * -17.59%*
Hmean     disk-97    778074.87 (   0.00%)   679906.54 * -12.62%*
Hmean     disk-121   868421.05 (   0.00%)   812080.54 *  -6.49%*
Hmean     disk-145   964523.28 (   0.00%)   882352.94 *  -8.52%*
Hmean     disk-169  1014000.00 (   0.00%)   984466.02 *  -2.91%*
Hmean     disk-193  1128654.97 (   0.00%)  1058500.91 *  -6.22%*

The difference is not that big but still noticeable for say 25 processes.