diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 0d385be682d..4f4008fc73e 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -205,6 +205,19 @@ config SLUB_DEBUG_ON off in a kernel built with CONFIG_SLUB_DEBUG_ON by specifying "slub_debug=-". +config SLUB_STATS + default n + bool "Enable SLUB performance statistics" + depends on SLUB + help + SLUB statistics are useful to debug SLUBs allocation behavior in + order find ways to optimize the allocator. This should never be + enabled for production use since keeping statistics slows down + the allocator by a few percentage points. The slabinfo command + supports the determination of the most active slabs to figure + out which slabs are relevant to a particular load. + Try running: slabinfo -DA + config DEBUG_PREEMPT bool "Debug preemptible kernel" depends on DEBUG_KERNEL && PREEMPT && (TRACE_IRQFLAGS_SUPPORT || PPC64) |