Thanks manu,i will check it. 在 2013-4-19，下午4:26，Manuel Le Normand <manuel.lenorm...@gmail.com> 写道：
> Can happen for various reasons. > > Can you recreate the situation, meaning restarting the servlet or server > would start with good qTime and decrease from that point? How fast does > this happen? > > Start by monitoring the jvm process, with oracle visualVM for example. > Monitor for frequent garbage collections or unreasonable memory peacks or > opening threads. > Then monitor your system to see if there's an io disk latency or disk usage > that increases in time, the writing queue to disk exploads, cpu load > becomes heavier or network usage's exeeds limit. > > If you can recreate the decrease and monitor well, one of the above params > should pop up. Fixing it after defining the problem will be easier. > > Good day, > Manu > On Apr 19, 2013 10:26 AM, "qibaoyuan" <qibaoy...@gmail.com> wrote:
