Can anyone recommend good performance analysis tools for Ubuntu?
As a long time windows user I am now moving to Ubuntu. My laptop is Win 7 (32 bits) and I have installed the latest VM Ware player. I installed Ubuntu 11.10 64 on top of this, and am now experiencing real performance issues.
My typical workload involves running Netbeans IDE, Firefox, PHPUnit (with Xdebug) and a few of the smaller Ubuntu-packaged apps, such a gedit. I was running all this on the same laptop under a Win 32 guest in Virtual Box, and it was fine. Now that I move to Ubuntu and VM Ware, there is a real lag between typing on the keyboard, and seeing the input on the screen. Any ideas?
The VM has 1.5 Gb RAM, and I have experimented with between 1 and 4 cores. (I'm on an i7). Hardware virtualisation is enabled. (Prior to that, the machine was more or less unusable).
I haven't really had enough time to establish a pattern yet, but it seems that the longer the machine has been switched on, the worse the performance. Also, I notice that it buids up some swap, which it never seems to relinquish. Could this be a memory leak?
