diff options
| author | Ingo Molnar <mingo@elte.hu> | 2007-01-10 23:15:38 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2007-01-11 18:18:21 -0800 |
| commit | 07031e14c1127fc7e1a5b98dfcc59f434e025104 (patch) | |
| tree | be4f545e674c529abb0f51c8b87e1f7137c9acb6 /kernel/stacktrace.c | |
| parent | e3881a6816b45668df60a426e5c3431ece1539a7 (diff) | |
[PATCH] KVM: add VM-exit profiling
This adds the profile=kvm boot option, which enables KVM to profile VM
exits.
Use: "readprofile -m ./System.map | sort -n" to see the resulting
output:
[...]
18246 serial_out 148.3415
18945 native_flush_tlb 378.9000
23618 serial_in 212.7748
29279 __spin_unlock_irq 622.9574
43447 native_apic_write 2068.9048
52702 enable_8259A_irq 742.2817
54250 vgacon_scroll 89.3740
67394 ide_inb 6126.7273
79514 copy_page_range 98.1654
84868 do_wp_page 86.6000
140266 pit_read 783.6089
151436 ide_outb 25239.3333
152668 native_io_delay 21809.7143
174783 mask_and_ack_8259A 783.7803
362404 native_set_pte_at 36240.4000
1688747 total 0.5009
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/stacktrace.c')
0 files changed, 0 insertions, 0 deletions