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Peter Zijlstra 87e24f4b67 perf/x86: Fix local vs remote memory events for NHM/WSM ... Verified using the below proglet.. before: [root@westmere ~]# perf stat -e node-stores -e node-store-misses ./numa 0 remote write Performance counter stats for './numa 0': 2,101,554 node-stores 2,096,931 node-store-misses 5.021546079 seconds time elapsed [root@westmere ~]# perf stat -e node-stores -e node-store-misses ./numa 1 local write Performance counter stats for './numa 1': 501,137 node-stores 199 node-store-misses 5.124451068 seconds time elapsed After: [root@westmere ~]# perf stat -e node-stores -e node-store-misses ./numa 0 remote write Performance counter stats for './numa 0': 2,107,516 node-stores 2,097,187 node-store-misses 5.012755149 seconds time elapsed [root@westmere ~]# perf stat -e node-stores -e node-store-misses ./numa 1 local write Performance counter stats for './numa 1': 2,063,355 node-stores 165 node-store-misses 5.082091494 seconds time elapsed #define _GNU_SOURCE #include <sched.h> #include <stdio.h> #include <errno.h> #include <sys/mman.h> #include <sys/types.h> #include <dirent.h> #include <signal.h> #include <unistd.h> #include <numaif.h> #include <stdlib.h> #define SIZE (32*1024*1024) volatile int done; void sig_done(int sig) { done = 1; } int main(int argc, char **argv) { cpu_set_t *mask, *mask2; size_t size; int i, err, t; int nrcpus = 1024; char *mem; unsigned long nodemask = 0x01; /* node 0 */ DIR *node; struct dirent *de; int read = 0; int local = 0; if (argc < 2) { printf("usage: %s [0-3]\n", argv[0]); printf(" bit0 - local/remote\n"); printf(" bit1 - read/write\n"); exit(0); } switch (atoi(argv[1])) { case 0: printf("remote write\n"); break; case 1: printf("local write\n"); local = 1; break; case 2: printf("remote read\n"); read = 1; break; case 3: printf("local read\n"); local = 1; read = 1; break; } mask = CPU_ALLOC(nrcpus); size = CPU_ALLOC_SIZE(nrcpus); CPU_ZERO_S(size, mask); node = opendir("/sys/devices/system/node/node0/"); if (!node) perror("opendir"); while ((de = readdir(node))) { int cpu; if (sscanf(de->d_name, "cpu%d", &cpu) == 1) CPU_SET_S(cpu, size, mask); } closedir(node); mask2 = CPU_ALLOC(nrcpus); CPU_ZERO_S(size, mask2); for (i = 0; i < size; i++) CPU_SET_S(i, size, mask2); CPU_XOR_S(size, mask2, mask2, mask); // invert if (!local) mask = mask2; err = sched_setaffinity(0, size, mask); if (err) perror("sched_setaffinity"); mem = mmap(0, SIZE, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0); err = mbind(mem, SIZE, MPOL_BIND, &nodemask, 8*sizeof(nodemask), MPOL_MF_MOVE); if (err) perror("mbind"); signal(SIGALRM, sig_done); alarm(5); if (!read) { while (!done) { for (i = 0; i < SIZE; i++) mem[i] = 0x01; } } else { while (!done) { for (i = 0; i < SIZE; i++) t += *(volatile char *)(mem + i); } } return 0; } Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: <stable@kernel.org> Link: http://lkml.kernel.org/n/tip-tq73sxus35xmqpojf7ootxgs@git.kernel.org Signed-off-by: Ingo Molnar <mingo@elte.hu>		13 years ago
..
acpi	x86, acpi: Skip acpi x2apic entries if the x2apic feature is not present	13 years ago
apic	x86, UV: Update Boot messages for SGI UV2 platform	13 years ago
cpu	perf/x86: Fix local vs remote memory events for NHM/WSM	13 years ago
.gitignore	…
Makefile	Merge branch 'x86-syscall-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	13 years ago
alternative.c	x86: Call stop_machine_text_poke() on all CPUs	13 years ago
amd_gart_64.c	doc: fix broken references	14 years ago
amd_nb.c	Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci	13 years ago
apb_timer.c	Merge branch 'timers-clocksource-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	14 years ago
aperture_64.c	memblock, x86: Replace memblock_x86_reserve/free_range() with generic ones	14 years ago
apm_32.c	module_param: make bool parameters really bool (arch)	13 years ago
asm-offsets.c	x86, efi: EFI boot stub support	13 years ago
asm-offsets_32.c	x86: Generate system call tables and unistd_*.h from tables	13 years ago
asm-offsets_64.c	x86: Generate system call tables and unistd_*.h from tables	13 years ago
audit_64.c	…
bootflag.c	…
check.c	memblock, x86: Replace memblock_x86_reserve/free_range() with generic ones	14 years ago
cpuid.c	switch device_get_devnode() and ->devnode() to umode_t *	13 years ago
crash.c	x86, nmi: Wire up NMI handlers to new routines	14 years ago
crash_dump_32.c	crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn	14 years ago
crash_dump_64.c	crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn	14 years ago
devicetree.c	x86: Fix files explicitly requiring export.h for EXPORT_SYMBOL/THIS_MODULE	13 years ago
doublefault_32.c	…
dumpstack.c	bugs, x86: Fix printk levels for panic, softlockups and stack dumps	13 years ago
dumpstack_32.c	x86, dumpstack: Fix code bytes breakage due to missing KERN_CONT	13 years ago
dumpstack_64.c	Merge branches 'core-urgent-for-linus', 'perf-urgent-for-linus', 'sched-urgent-for-linus' and 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	13 years ago
e820.c	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux	13 years ago
early-quirks.c	x86, quirk: Fix SB600 revision check	14 years ago
early_printk.c	Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	13 years ago
entry_32.S	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit	13 years ago
entry_64.S	x86: Specify a size for the cmp in the NMI handler	13 years ago
ftrace.c	x86/ftrace: Fix compiler warning in ftrace.c	14 years ago
head.c	memblock, x86: Replace memblock_x86_reserve/free_range() with generic ones	14 years ago
head32.c	memblock: Kill memblock_init()	13 years ago
head64.c	memblock: Kill memblock_init()	13 years ago
head_32.S	Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	14 years ago
head_64.S	x86: Keep current stack in NMI breakpoints	13 years ago
hpet.c	Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core	13 years ago
hw_breakpoint.c	…
i386_ksyms_32.c	…
i387.c	treewide: fix potentially dangerous trailing ';' in #defined values/expressions	14 years ago
i8237.c	x86: Use syscore_ops instead of sysdev classes and sysdevs	14 years ago
i8253.c	x86: Use common i8253 clockevent	14 years ago
i8259.c	atomic: use <linux/atomic.h>	14 years ago
init_task.c	…
io_delay.c	…
ioport.c	…
irq.c	Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	13 years ago
irq_32.c	x86: Fix the 32-bit stackoverflow-debug build	13 years ago
irq_64.c	x86: Add stack top margin for stack overflow checking	13 years ago
irq_work.c	…
irqinit.c	driver-core: remove sysdev.h usage.	13 years ago
jump_label.c	jump_label, x86: Fix section mismatch	13 years ago
kdebugfs.c	…
kgdb.c	x86, nmi: Wire up NMI handlers to new routines	14 years ago
kprobes.c	Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	13 years ago
kvm.c	KVM guest: remove KVM guest pv mmu support	13 years ago
kvmclock.c	KVM guest: prevent tracing recursion with kvmclock	13 years ago
ldt.c	…
machine_kexec_32.c	…
machine_kexec_64.c	…
mca_32.c	x86: Fix common misspellings	14 years ago
microcode_amd.c	x86/microcode: Remove noisy AMD microcode warning	13 years ago
microcode_core.c	Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core	13 years ago
microcode_intel.c	x86, intel: Output microcode revision in /proc/cpuinfo	14 years ago
mmconf-fam10h_64.c	…
module.c	modules: make arch's use default loader hooks	14 years ago
mpparse.c	Merge branch 'memblock-kill-early_node_map' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc into core/memblock	13 years ago
msr.c	switch device_get_devnode() and ->devnode() to umode_t *	13 years ago
nmi.c	x86: Allow NMIs to hit breakpoints in i386	13 years ago
nmi_selftest.c	x86, NMI: Add to_cpumask() to silence compile warning	13 years ago
paravirt-spinlocks.c	…
paravirt.c	Merge branch 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-tip	14 years ago
paravirt_patch_32.c	…
paravirt_patch_64.c	…
pci-calgary_64.c	treewide: Convert uses of struct resource to resource_size(ptr)	14 years ago
pci-dma.c	iommu: Add option to group multi-function devices	13 years ago
pci-iommu_table.c	arch/x86/kernel/pci-iommu_table.c: Convert sprintf_symbol to %pS	14 years ago
pci-nommu.c	…
pci-swiotlb.c	…
pcspeaker.c	…
probe_roms.c	x86: Fix files explicitly requiring export.h for EXPORT_SYMBOL/THIS_MODULE	13 years ago
process.c	x86: Fix rflags in FAKE_STACK_FRAME	13 years ago
process_32.c	i387: support lazy restore of FPU state	13 years ago
process_64.c	i387: support lazy restore of FPU state	13 years ago
ptrace.c	audit: inline audit_syscall_entry to reduce burden on archs	13 years ago
pvclock.c	…
quirks.c	x86, amd: Fix up numa_node information for AMD CPU family 15h model 0-0fh northbridge functions	13 years ago
reboot.c	x86/reboot: Remove VersaLogic Menlow reboot quirk	13 years ago
reboot_32.S	x86, reboot: Fix relocations in reboot_32.S	14 years ago
reboot_fixups_32.c	…
relocate_kernel_32.S	kexec, x86: Fix incorrect jump back address if not preserving context	14 years ago
relocate_kernel_64.S	kexec, x86: Fix incorrect jump back address if not preserving context	14 years ago
resource.c	…
rtc.c	x86/rtc, mrst: Don't register a platform RTC device for for Intel MID platforms	13 years ago
setup.c	Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	13 years ago
setup_percpu.c	…
signal.c	signal: add block_sigmask() for adding sigmask to current->blocked	13 years ago
smp.c	x86, reboot: Fix typo in nmi reboot path	13 years ago
smpboot.c	Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	13 years ago
stacktrace.c	x86: Swap save_stack_trace_regs parameters	14 years ago
step.c	x86-64: Add user_64bit_mode paravirt op	14 years ago
sys_i386_32.c	…
sys_x86_64.c	x86, amd: Include linux/elf.h since we use stuff from asm/elf.h	14 years ago
syscall_32.c	x86, syscall: Re-fix typo in comment	13 years ago
syscall_64.c	x86: Generate system call tables and unistd_*.h from tables	13 years ago
tboot.c	x86: Fix files explicitly requiring export.h for EXPORT_SYMBOL/THIS_MODULE	13 years ago
tce_64.c	…
test_nx.c	x86: Eliminate various 'set but not used' warnings	14 years ago
test_rodata.c	…
time.c	x86: Fix files explicitly requiring export.h for EXPORT_SYMBOL/THIS_MODULE	13 years ago
tls.c	…
tls.h	…
topology.c	x86: Fix files explicitly requiring export.h for EXPORT_SYMBOL/THIS_MODULE	13 years ago
trampoline.c	memblock, x86: Replace memblock_x86_reserve/free_range() with generic ones	14 years ago
trampoline_32.S	…
trampoline_64.S	…
traps.c	i387: use 'restore_fpu_checking()' directly in task switching code	13 years ago
tsc.c	Merge remote-tracking branch 'linus/master' into x86/urgent	13 years ago
tsc_sync.c	x86, tsc: Skip TSC synchronization checks for tsc=reliable	13 years ago
verify_cpu.S	x86: Fix common misspellings	14 years ago
vm86_32.c	x86-32: Fix build failure with AUDIT=y, AUDITSYSCALL=n	13 years ago
vmlinux.lds.S	x86-64: Rework vsyscall emulation and add vsyscall= parameter	14 years ago
vsmp_64.c	…
vsyscall_64.c	x86: Default to vsyscall=emulate	13 years ago
vsyscall_emu_64.S	x86-64: Rework vsyscall emulation and add vsyscall= parameter	14 years ago
vsyscall_trace.h	x86-64: Add vsyscall:emulate_vsyscall trace event	14 years ago
x86_init.c	Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci	13 years ago
x8664_ksyms_64.c	…
xsave.c	i387: move TS_USEDFPU flag from thread_info to task_struct	13 years ago