David Daney bba9076058 MIPS: Crazy spinlock speed test. ... This is just a test program for raw_spinlocks. The main reason I wrote it is to validate my spinlock changes that I sent in a previous patch. To use it enable CONFIG_DEBUG_FS and CONFIG_SPINLOCK_TEST then at run time do: # mount -t debugfs none /sys/kernel/debug/ # cat /sys/kernel/debug/mips/spin_single # cat /sys/kernel/debug/mips/spin_multi On my 600MHz octeon cn5860 (16 CPUs) I get spin_single spin_multi base 106885 247941 spinlock_patch 75194 219465 This shows that for uncontended locks the spinlock patch gives 41% improvement and for contended locks 12% improvement (1/time). Signed-off-by: David Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/969/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>		2010-02-27 12:53:42 +01:00
..
cpufreq	MIPS: Loongson 2F: Add CPU frequency scaling support	2009-12-17 01:57:20 +00:00
.gitignore	…
8250-platform.c	…
Makefile	MIPS: Crazy spinlock speed test.	2010-02-27 12:53:42 +01:00
asm-offsets.c	MIPS: Two-level pagetables for 64-bit kernels with 64KB pages.	2010-02-27 12:53:03 +01:00
binfmt_elfn32.c	…
binfmt_elfo32.c	…
branch.c	…
cevt-bcm1480.c	…
cevt-ds1287.c	…
cevt-gt641xx.c	MIPS: GT641xx: Convert timer lock to raw spinlock.	2010-02-27 12:53:37 +01:00
cevt-r4k.c	MIPS: PowerTV: Fix support for timer interrupts with > 64 external IRQs	2010-01-28 00:03:31 +01:00
cevt-sb1250.c	…
cevt-smtc.c	…
cevt-txx9.c	…
cpu-bugs64.c	…
cpu-probe.c	MIPS: Give Octeon+ CPUs their own cputype.	2010-02-27 12:53:26 +01:00
csrc-bcm1480.c	…
csrc-ioasic.c	…
csrc-powertv.c	MIPS: PowerTV: Base files for Cisco PowerTV platform	2009-12-17 01:57:17 +00:00
csrc-r4k.c	…
csrc-sb1250.c	…
early_printk.c	…
entry.S	…
ftrace.c	MIPS: Loongson: Change the Email address of Wu Zhangjin	2010-02-27 12:53:12 +01:00
genex.S	…
gpio_txx9.c	…
head.S	…
i8253.c	…
i8259.c	MIPS: i8259: Convert IRQ controller lock to raw spinlock.	2010-02-27 12:53:38 +01:00
init_task.c	…
irq-gic.c	…
irq-gt641xx.c	MIPS: GT641xx: Convert IRQ controller lock to raw spinlock.	2010-02-27 12:53:31 +01:00
irq-msc01.c	…
irq-rm7000.c	…
irq-rm9000.c	…
irq.c	MIPS: Tracing: Add IRQENTRY_EXIT section for MIPS	2009-12-17 01:57:24 +00:00
irq_cpu.c	…
irq_txx9.c	…
kgdb.c	…
kspd.c	…
linux32.c	MIPS: Don't include <linux/smp_lock.h> unnecessarily.	2010-02-27 12:52:57 +01:00
machine_kexec.c	…
mcount.S	MIPS: Loongson: Change the Email address of Wu Zhangjin	2010-02-27 12:53:12 +01:00
mips-mt-fpaff.c	…
mips-mt.c	…
mips_ksyms.c	MIPS: Tracing: Add static function tracer support for MIPS	2009-12-17 01:57:21 +00:00
module.c	…
octeon_switch.S	MIPS: Nuke trailing blank lines	2010-02-27 12:53:14 +01:00
proc.c	…
process.c	…
ptrace.c	…
ptrace32.c	…
r4k_fpu.S	…
r4k_switch.S	…
r2300_fpu.S	…
r2300_switch.S	…
r6000_fpu.S	…
relocate_kernel.S	…
reset.c	…
rtlx.c	MIPS: Don't include <linux/smp_lock.h> unnecessarily.	2010-02-27 12:52:57 +01:00
scall32-o32.S	…
scall64-64.S	…
scall64-n32.S	…
scall64-o32.S	…
setup.c	MIPS: Fix and enhance built-in kernel command line	2009-12-17 01:57:35 +00:00
signal-common.h	…
signal.c	MIPS: Cleanup signal code initialization	2009-12-17 01:57:32 +00:00
signal32.c	MIPS: Cleanup signal code initialization	2009-12-17 01:57:32 +00:00
signal_n32.c	…
smp-cmp.c	…
smp-mt.c	…
smp-up.c	…
smp.c	MIPS: Tracing: Add IRQENTRY_EXIT section for MIPS	2009-12-17 01:57:24 +00:00
smtc-asm.S	…
smtc-proc.c	…
smtc.c	MIPS: Tracing: Add IRQENTRY_EXIT section for MIPS	2009-12-17 01:57:24 +00:00
spinlock_test.c	MIPS: Crazy spinlock speed test.	2010-02-27 12:53:42 +01:00
spram.c	…
stacktrace.c	…
sync-r4k.c	…
syscall.c	…
time.c	…
topology.c	…
traps.c	MIPS: Deal with larger physical offsets	2010-02-27 12:53:19 +01:00
unaligned.c	MIPS: Modularize COP2 handling	2009-12-17 01:57:30 +00:00
vmlinux.lds.S	MIPS: Tracing: Add IRQENTRY_EXIT section for MIPS	2009-12-17 01:57:24 +00:00
vpe.c	MIPS: Don't include <linux/smp_lock.h> unnecessarily.	2010-02-27 12:52:57 +01:00
watch.c	…