The ITLB Instruction Fetch Hits event isn't documented even in
later zen1 PPRs, but it seems to count correctly on zen1 hardware.
Add it to zen1 group so zen1 users can use the upcoming IC Fetch Miss
Ratio Metric.
The IF1G, 1IF2M, IF4K (Instruction fetches to a 1 GB, 2 MB, and 4K page)
unit masks are not added because unlike zen2 hardware, zen1 hardware
counts all its unit masks with a 0 unit mask according to the old
convention:
zen1$ perf stat -e cpu/event=0x94/,cpu/event=0x94,umask=0xff/ sleep 1
Performance counter stats for 'sleep 1':
211,318 cpu/event=0x94/u
211,318 cpu/event=0x94,umask=0xff/u
Rome/zen2:
zen2$ perf stat -e cpu/event=0x94/,cpu/event=0x94,umask=0xff/ sleep 1
Performance counter stats for 'sleep 1':
0 cpu/event=0x94/u
190,744 cpu/event=0x94,umask=0xff/u
Signed-off-by: Kim Phillips <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Vijay Thakkar <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Yunfeng Ye <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: "Martin Liška" <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Jon Grimm <[email protected]>
Cc: Martin Jambor <[email protected]>
Cc: Michael Petlan <[email protected]>
Cc: William Cohen <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: [email protected]
Cc: [email protected]
---
tools/perf/pmu-events/arch/x86/amdzen1/branch.json | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/tools/perf/pmu-events/arch/x86/amdzen1/branch.json
b/tools/perf/pmu-events/arch/x86/amdzen1/branch.json
index a9943eeb8d6b..4ceb67a0db21 100644
--- a/tools/perf/pmu-events/arch/x86/amdzen1/branch.json
+++ b/tools/perf/pmu-events/arch/x86/amdzen1/branch.json
@@ -19,5 +19,10 @@
"EventName": "bp_de_redirect",
"EventCode": "0x91",
"BriefDescription": "Decoder Overrides Existing Branch Prediction
(speculative)."
+ },
+ {
+ "EventName": "bp_l1_tlb_fetch_hit",
+ "EventCode": "0x94",
+ "BriefDescription": "The number of instruction fetches that hit in the L1
ITLB."
}
]
--
2.27.0
