diff options
author | Stephen Rothwell <sfr@canb.auug.org.au> | 2008-10-28 15:45:37 +1100 |
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committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2008-10-28 15:45:37 +1100 |
commit | 14c79021df3019def998c7f10dbbf622a2f1bade (patch) | |
tree | 0dcac1d4dcdaabf5ac24bee1596e570c7958fd47 /lib | |
parent | e203ddaf86b62b67f9057972020fb5e63c1d3595 (diff) | |
parent | d096f80bf195c0bbe868e3287b951effb765c4c0 (diff) |
Merge commit 'slab/for-next'
Conflicts:
mm/Makefile
Diffstat (limited to 'lib')
-rw-r--r-- | lib/Kconfig.debug | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index c22aa4002683..428dbcb6d445 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -728,6 +728,26 @@ config FIREWIRE_OHCI_REMOTE_DMA If unsure, say N. +config KMEMTRACE + bool "Kernel memory tracer (kmemtrace)" + depends on RELAY && DEBUG_FS && MARKERS + help + kmemtrace provides tracing for slab allocator functions, such as + kmalloc, kfree, kmem_cache_alloc, kmem_cache_free etc.. Collected + data is then fed to the userspace application in order to analyse + allocation hotspots, internal fragmentation and so on, making it + possible to see how well an allocator performs, as well as debug + and profile kernel code. + + This requires an userspace application to use. See + Documentation/vm/kmemtrace.txt for more information. + + Saying Y will make the kernel somewhat larger and slower. However, + if you disable kmemtrace at run-time or boot-time, the performance + impact is minimal (depending on the arch the kernel is built for). + + If unsure, say N. + menuconfig BUILD_DOCSRC bool "Build targets in Documentation/ tree" depends on HEADERS_CHECK |