22b8ce9470
Way too often, I have a machine that exhibits some kind of crappy behavior. The CPU looks wedged in the kernel or it is spending way too much system time and I wonder what is responsible. I try to run readprofile. But, of course, Ubuntu doesn't enable it by default. Dang! The reason we boot-time enable it is that it takes a big bufffer that we generally can only bootmem alloc. But, does it hurt to at least try and runtime-alloc it? To use: echo 2 > /sys/kernel/profile Then run readprofile like normal. This should fix the compile issue with allmodconfig. I've compile-tested on a bunch more configs now including a few more architectures. Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| .. | ||
| debugfs-pktcdvd | ||
| procfs-diskstats | ||
| sysfs-block | ||
| sysfs-bus-css | ||
| sysfs-bus-pci | ||
| sysfs-bus-usb | ||
| sysfs-class | ||
| sysfs-class-bdi | ||
| sysfs-class-pktcdvd | ||
| sysfs-class-regulator | ||
| sysfs-dev | ||
| sysfs-devices | ||
| sysfs-devices-memory | ||
| sysfs-firmware-acpi | ||
| sysfs-firmware-memmap | ||
| sysfs-firmware-sgi_uv | ||
| sysfs-gpio | ||
| sysfs-ibft | ||
| sysfs-kernel-mm | ||
| sysfs-kernel-mm-hugepages | ||
| sysfs-kernel-uids | ||
| sysfs-ocfs2 | ||
| sysfs-power | ||
| sysfs-profiling | ||