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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-08-20 17:02:19 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-21 13:52:58 +0200 |
| commit | 994025caba3e6beade9bde84dd1b70d9d250f27b (patch) | |
| tree | 0fe4d6f08d252af1db6a631182725085bb76442b /arch/x86/xen/Kconfig | |
| parent | 168d2f464ab9860f0d1e66cf1f9684973222f1c6 (diff) | |
| download | lwn-994025caba3e6beade9bde84dd1b70d9d250f27b.tar.gz lwn-994025caba3e6beade9bde84dd1b70d9d250f27b.zip | |
xen: add debugfs support
Add support for exporting statistics on mmu updates, multicall
batching and pv spinlocks into debugfs. The base path is xen/ and
each subsystem adds its own directory: mmu, multicalls, spinlocks.
In each directory, writing 1 to "zero_stats" will cause the
corresponding stats to be zeroed the next time they're updated.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/xen/Kconfig')
| -rw-r--r-- | arch/x86/xen/Kconfig | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig index 3815e425f470..d3e68465ace9 100644 --- a/arch/x86/xen/Kconfig +++ b/arch/x86/xen/Kconfig @@ -27,4 +27,12 @@ config XEN_MAX_DOMAIN_MEMORY config XEN_SAVE_RESTORE bool depends on PM - default y
\ No newline at end of file + default y + +config XEN_DEBUG_FS + bool "Enable Xen debug and tuning parameters in debugfs" + depends on XEN && DEBUG_FS + default n + help + Enable statistics output and various tuning options in debugfs. + Enabling this option may incur a significant performance overhead.
\ No newline at end of file |