Alexander Antonov f9ed693e8b perf stat: Enable iostat mode for x86 platforms ... This functionality is based on recently introduced sysfs attributes for Intel® Xeon® Scalable processor family (code name Skylake-SP): Commit bb42b3d397 ("perf/x86/intel/uncore: Expose an Uncore unit to IIO PMON mapping") Mode is intended to provide four I/O performance metrics in MB per each PCIe root port: - Inbound Read: I/O devices below root port read from the host memory - Inbound Write: I/O devices below root port write to the host memory - Outbound Read: CPU reads from I/O devices below root port - Outbound Write: CPU writes to I/O devices below root port Each metric requiries only one uncore event which increments at every 4B transfer in corresponding direction. The formulas to compute metrics are generic: #EventCount * 4B / (1024 * 1024) Acked-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Alexander Antonov <alexander.antonov@linux.intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey V Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20210419094147.15909-4-alexander.antonov@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2021-04-20 08:40:20 -03:00
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accounting
arch	tools headers UAPI: Sync KVM's kvm.h and vmx.h headers with the kernel sources	2021-03-06 16:54:30 -03:00
bootconfig	tools/bootconfig: Add tracing_on support to helper scripts	2021-01-14 10:32:20 -05:00
bpf	Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf	2021-02-26 13:16:31 -08:00
build	perf build: Move feature cleanup under tools/build	2021-03-06 16:54:24 -03:00
cgroup
debugging
edid
firewire
firmware
gpio	tools: gpio: remove uAPI v1 code no longer used by selftests	2021-02-15 11:43:28 +01:00
hv
iio
include	tools include: Add an initial math64.h	2021-04-15 16:38:02 -03:00
io_uring
kvm/kvm_stat	tools/kvm_stat: Add restart delay	2021-03-30 13:07:09 -04:00
laptop
leds
lib	libperf xyarray: Add bounds checks to xyarray__entry()	2021-04-20 08:11:33 -03:00
memory-model
objtool	objtool,x86: Fix uaccess PUSHF/POPF validation	2021-03-12 09:15:49 +01:00
pci
pcmcia
perf	perf stat: Enable iostat mode for x86 platforms	2021-04-20 08:40:20 -03:00
power	platform-drivers-x86 for v5.12-1	2021-02-22 08:50:01 -08:00
scripts	New features:	2021-02-22 13:59:43 -08:00
spi
testing	Networking fixes for 5.12-rc7, including fixes from can, ipsec,	2021-04-09 15:26:51 -07:00
thermal/tmon
time
tracing	tracing/tools: fix a couple of spelling mistakes	2021-02-25 12:54:16 -05:00
usb
virtio
vm
wmi
Makefile	tracing/tools: Add the latency-collector to tools directory	2021-02-12 11:52:59 -05:00