14 апр. 2014 г., в 19:11, Jeff Janes <jeff.janes@xxxxxxxxx> написал(а):
I didn’t know that, thanks. Seems, that I have quite small shared buffers size. I will investigate this problem.
Actually, I have already tuned them to different values. Test results above have been obtained with such settings for page cache: vm.dirty_background_ratio = 5 vm.dirty_ratio = 40 vm.dirty_expire_centisecs = 100 vm.dirty_writeback_centisecs = 100 Togethrer with previous point I will try to tune os and postgres settings. Thanks.
-- Vladimir |