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9e350de37a
linux/arch/powerpc/kernel
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Peter Zijlstra 9e350de37a perf_counter: Accurate period data 
We currently log hw.sample_period for PERF_SAMPLE_PERIOD, however this is
incorrect. When we adjust the period, it will only take effect the next
cycle but report it for the current cycle. So when we adjust the period
for every cycle, we're always wrong.

Solve this by keeping track of the last_period.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-11 02:39:02 +02:00
..
vdso32 powerpc/mm: Introduce MMU features 2008-12-21 14:21:16 +11:00
vdso64 powerpc/mm: Introduce MMU features 2008-12-21 14:21:16 +11:00
.gitignore
align.c powerpc: Fix load/store float double alignment handler 2009-02-26 14:02:53 +11:00
asm-offsets.c Merge branch 'linus' into perfcounters/core-v2 2009-04-06 09:02:57 +02:00
audit.c
btext.c
cacheinfo.c powerpc/cacheinfo: Rename cache_dir per-cpu variable 2009-01-13 14:48:02 +11:00
cacheinfo.h powerpc: Rewrite sysfs processor cache info code 2009-01-08 16:25:10 +11:00
clock.c
compat_audit.c
cpu_setup_6xx.S powerpc/mm: e300c2/c3/c4 TLB errata workaround 2009-03-24 13:47:32 +11:00
cpu_setup_44x.S AMCC PPC 460SX redwood SoC platform initial framework 2009-02-14 14:41:29 -05:00
cpu_setup_fsl_booke.S powerpc/fsl-booke: Cleanup init/exception setup to be runtime 2009-01-28 18:16:50 -06:00
cpu_setup_pa6t.S
cpu_setup_ppc970.S
cputable.c powerpc/pseries: Really fix the oprofile CPU type on pseries 2009-05-15 16:43:42 +10:00
crash_dump.c powerpc: Unify opcode definitions and support 2009-02-23 10:48:56 +11:00
crash.c
dbell.c powerpc: Add support for using doorbells for SMP IPI 2009-02-23 15:53:03 +11:00
dma-iommu.c powerpc: Change u64/s64 to a long long integer type 2009-01-13 14:47:59 +11:00
dma.c powerpc: Fix up dma_alloc_coherent() on platforms without cache coherency. 2009-05-27 16:33:59 +10:00
entry_32.S powerpc: Unify opcode definitions and support 2009-02-23 10:48:56 +11:00
entry_64.S Merge branch 'linus' into perfcounters/core-v2 2009-04-06 09:02:57 +02:00
firmware.c
fpu.S powerpc: Disable VSX or current process in giveup_fpu/altivec 2009-04-07 15:18:59 +10:00
ftrace.c powerpc/ftrace: Fix constraint to be early clobber 2009-05-18 15:19:05 +10:00
head_8xx.S powerpc: convert to use __HEAD and HEAD_TEXT macros. 2009-04-26 09:20:38 -07:00
head_32.S powerpc: convert to use __HEAD and HEAD_TEXT macros. 2009-04-26 09:20:38 -07:00
head_40x.S powerpc: convert to use __HEAD and HEAD_TEXT macros. 2009-04-26 09:20:38 -07:00
head_44x.S powerpc: convert to use __HEAD and HEAD_TEXT macros. 2009-04-26 09:20:38 -07:00
head_64.S powerpc/kconfig: Kill PPC_MULTIPLATFORM 2009-03-11 17:11:35 +11:00
head_booke.h Merge commit 'jwb/next' into next 2009-03-03 13:30:03 +11:00
head_fsl_booke.S powerpc: convert to use __HEAD and HEAD_TEXT macros. 2009-04-26 09:20:38 -07:00
ibmebus.c powerpc: struct device - replace bus_id with dev_name(), dev_set_name() 2008-12-16 15:53:38 +11:00
idle_6xx.S
idle_e500.S
idle_power4.S
idle.c
init_task.c take init_fs to saner place 2008-12-31 18:07:42 -05:00
io.c
iomap.c
iommu.c powerpc: Change u64/s64 to a long long integer type 2009-01-13 14:47:59 +11:00
irq.c Merge commit 'v2.6.30-rc1' into perfcounters/core 2009-04-08 10:35:30 +02:00
isa-bridge.c
kgdb.c
kprobes.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-01-07 11:31:52 -08:00
l2cr_6xx.S
legacy_serial.c
lparcfg.c powerpc/pseries: Add dispatch dispersion statistics 2009-04-07 15:18:59 +10:00
machine_kexec_32.c
machine_kexec_64.c powerpc/32: Setup OF properties for kdump 2008-12-23 15:13:29 +11:00
machine_kexec.c powerpc: Allow mem=x cmdline to work with 4G+ 2009-05-15 16:43:41 +10:00
Makefile Merge branch 'linus' into perfcounters/core-v2 2009-04-06 09:02:57 +02:00
misc_32.S powerpc/44x: Support 16K/64K base page sizes on 44x 2008-12-29 09:53:25 +11:00
misc_64.S powerpc: Disable VSX or current process in giveup_fpu/altivec 2009-04-07 15:18:59 +10:00
misc.S
module_32.c
module_64.c powerpc: Unify opcode definitions and support 2009-02-23 10:48:56 +11:00
module.c powerpc/mm: Introduce MMU features 2008-12-21 14:21:16 +11:00
msi.c powerpc/PCI: include pci.h in powerpc MSI implementation 2009-03-25 08:54:29 -07:00
nvram_64.c
of_device.c powerpc: struct device - replace bus_id with dev_name(), dev_set_name() 2008-12-16 15:53:38 +11:00
of_platform.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
paca.c
pci_32.c powerpc/pci: Fix PCI<->OF matching of old style multifunc devices 2009-02-23 10:48:57 +11:00
pci_64.c powerpc: Fix PCI ROM access 2009-05-15 16:43:42 +10:00
pci_dn.c
pci-common.c powerpc: Fix PCI ROM access 2009-05-15 16:43:42 +10:00
perf_counter.c perf_counter: Accurate period data 2009-06-11 02:39:02 +02:00
pmc.c
power4-pmu.c perf_counter: powerpc: use u64 for event codes internally 2009-05-15 16:38:55 +02:00
power5-pmu.c perf_counter: powerpc: Fix event alternative code generation on POWER5/5+ 2009-06-03 11:49:52 +02:00
power5+-pmu.c perf_counter: powerpc: Fix event alternative code generation on POWER5/5+ 2009-06-03 11:49:52 +02:00
power6-pmu.c perf_counter: powerpc: supply more precise information on counter overflow events 2009-05-15 16:38:57 +02:00
ppc32.h
ppc970-pmu.c perf_counter: powerpc: use u64 for event codes internally 2009-05-15 16:38:55 +02:00
ppc_ksyms.c powerpc: Export cacheable_memzero as its now used in a driver 2009-01-08 16:25:17 +11:00
ppc_save_regs.S powerpc: Prepare xmon_save_regs for use with kdump 2008-12-23 15:13:28 +11:00
proc_ppc64.c
process.c Simplify copy_thread() 2009-04-02 19:04:51 -07:00
prom_init_check.sh powerpc: Print linux_banner in prom_init 2009-03-11 17:11:33 +11:00
prom_init.c powerpc/pseries: Fix ibm,client-architecture comment 2009-04-07 15:18:59 +10:00
prom_parse.c powerpc: Fix of_node_put() exit path in of_irq_map_one() 2009-04-20 12:18:43 -06:00
prom.c powerpc: Allow mem=x cmdline to work with 4G+ 2009-05-15 16:43:41 +10:00
ptrace32.c powerpc: Fix ptrace compat wrapper for FPU register access 2009-04-07 15:19:00 +10:00
ptrace.c
reloc_64.S
rtas_flash.c proc 2/2: remove struct proc_dir_entry::owner 2009-03-31 01:14:44 +04:00
rtas_pci.c
rtas-proc.c
rtas-rtc.c
rtas.c powerpc/pseries: Fix partition migration hang under load 2009-02-23 15:53:04 +11:00
setup_32.c powerpc/32: Wire up the trampoline code for kdump 2008-12-23 15:13:29 +11:00
setup_64.c powerpc/mm: Introduce early_init_mmu() on 64-bit 2009-03-24 13:47:34 +11:00
setup-common.c powerpc: Remove duplicated #include's 2009-04-07 15:18:58 +10:00
setup.h
signal_32.c powerpc: Sanitize stack pointer in signal handling code 2009-03-27 16:58:24 +11:00
signal_64.c powerpc: Sanitize stack pointer in signal handling code 2009-03-27 16:58:24 +11:00
signal.c powerpc: Sanitize stack pointer in signal handling code 2009-03-27 16:58:24 +11:00
signal.h powerpc: Sanitize stack pointer in signal handling code 2009-03-27 16:58:24 +11:00
smp-tbsync.c
smp.c Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-01-02 11:44:09 -08:00
softemu8xx.c
stacktrace.c
suspend.c
swsusp_32.S powerpc/mm: Introduce MMU features 2008-12-21 14:21:16 +11:00
swsusp_64.c
swsusp_asm64.S
swsusp.c powerpc/mm: Split mmu_context handling 2008-12-21 14:21:15 +11:00
sys_ppc32.c
syscalls.c
sysfs.c powerpc: Fix bugs introduced by sysfs changes 2009-03-27 16:58:24 +11:00
systbl_chk.c
systbl_chk.sh
systbl.S
tau_6xx.c
time.c clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
traps.c powerpc: Add support for using doorbells for SMP IPI 2009-02-23 15:53:03 +11:00
udbg_16550.c powerpc/udbg: Fix lost byte during console handover; change LFCR to CRLF 2009-03-11 17:11:34 +11:00
udbg.c powerpc/udbg: Fix lost byte during console handover; change LFCR to CRLF 2009-03-11 17:11:34 +11:00
vdso.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2008-12-28 16:54:33 -08:00
vecemu.c
vector.S
vio.c workqueue: add to_delayed_work() helper function 2009-04-02 19:04:50 -07:00
vmlinux.lds.S powerpc: Explicit alignment for .data.cacheline_aligned 2009-05-18 15:19:05 +10:00