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1218838d68
Add support for 'perf kvm stat' on arm64 platform.
Example:
# perf kvm stat report
Analyze events for all VMs, all VCPUs:
VM-EXIT Samples Samples% Time% Min Time Max Time Avg time
DABT_LOW 661867 98.91% 40.45% 2.19us 3364.65us 6.24us ( +- 0.34% )
IRQ 4598 0.69% 57.44% 2.89us 3397.59us 1276.27us ( +- 1.61% )
WFx 1475 0.22% 1.71% 2.22us 3388.63us 118.31us ( +- 8.69% )
IABT_LOW 1018 0.15% 0.38% 2.22us 2742.07us 38.29us ( +- 12.55% )
SYS64 180 0.03% 0.01% 2.07us 112.91us 6.57us ( +- 14.95% )
HVC64 17 0.00% 0.01% 2.19us 322.35us 42.95us ( +- 58.98% )
Total Samples:669155, Total events handled time:10216387.86us.
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Tested-by: Leo Yan <leo.yan@linaro.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Suleiman Souhlal <suleiman@google.com>
Link: http://lore.kernel.org/lkml/20201027062421.463355-1-sergey.senozhatsky@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
29 lines
773 B
Makefile
29 lines
773 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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ifndef NO_DWARF
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PERF_HAVE_DWARF_REGS := 1
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endif
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PERF_HAVE_JITDUMP := 1
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PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1
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HAVE_KVM_STAT_SUPPORT := 1
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#
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# Syscall table generation for perf
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#
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out := $(OUTPUT)arch/arm64/include/generated/asm
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header := $(out)/syscalls.c
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incpath := $(srctree)/tools
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sysdef := $(srctree)/tools/arch/arm64/include/uapi/asm/unistd.h
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sysprf := $(srctree)/tools/perf/arch/arm64/entry/syscalls/
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systbl := $(sysprf)/mksyscalltbl
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# Create output directory if not already present
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_dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
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$(header): $(sysdef) $(systbl)
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$(Q)$(SHELL) '$(systbl)' '$(CC)' '$(HOSTCC)' $(incpath) $(sysdef) > $@
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clean::
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$(call QUIET_CLEAN, arm64) $(RM) $(header)
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archheaders: $(header)
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