I spent a day compiling a custom kernel with "transparent huge pages" enabled and set to "always" use mode (not madvise). I have been using the kernel for the last 24 hours without any trouble.
I find my laptop more responsive now. An informal test is that Stellarium's CPU utilisation was 45% in the stock kernel, while it went down to 30% in the custom kernel. For a more formal test, we can use oprofile with these commands: sudo opcontrol --init sudo opcontrol --setup --event DTLB_MISSES:1000 --no-vmlinux sudo opcontrol --start [... run some benchmark here ...] sudo opcontrol --stop sudo opcontrol --dump sudo opreport I am able to run the above commands in both stock and custom kernels and see some numbers. But I need to properly define the benchmark before reporting the numbers. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/743688 Title: Transparent HugePages not enabled in 11.04 kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/743688/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
