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[Qemu-devel] [PATCH v1 2/3] cpus: dump TLB flush counts as trace event
From: |
Alex Bennée |
Subject: |
[Qemu-devel] [PATCH v1 2/3] cpus: dump TLB flush counts as trace event |
Date: |
Tue, 11 Apr 2017 11:50:30 +0100 |
This can be pre-processed later from the trace file.
Signed-off-by: Alex Bennée <address@hidden>
---
cpus.c | 6 ++++++
trace-events | 3 +++
2 files changed, 9 insertions(+)
diff --git a/cpus.c b/cpus.c
index 740b8dc3f8..fae7344df5 100644
--- a/cpus.c
+++ b/cpus.c
@@ -50,6 +50,8 @@
#include "qapi-event.h"
#include "hw/nmi.h"
#include "sysemu/replay.h"
+#include "exec/cputlb.h"
+#include "trace-root.h"
#ifdef CONFIG_LINUX
@@ -1252,6 +1254,10 @@ static int tcg_cpu_exec(CPUState *cpu)
int64_t ti;
#endif
+ trace_tlb_flush_stats(tlb_self_flush_count,
+ tlb_async_flush_count,
+ tlb_synced_flush_count);
+
#ifdef CONFIG_PROFILER
ti = profile_getclock();
#endif
diff --git a/trace-events b/trace-events
index b07a09ba95..fc23e15d25 100644
--- a/trace-events
+++ b/trace-events
@@ -94,6 +94,9 @@ disable exec_tb(void *tb, uintptr_t pc) "tb:%p pc=0x%"PRIxPTR
disable exec_tb_nocache(void *tb, uintptr_t pc) "tb:%p pc=0x%"PRIxPTR
disable exec_tb_exit(void *last_tb, unsigned int flags) "tb:%p flags=%x"
+# cpus.c
+tlb_flush_stats(int self, int async, int synced) "self:%d async:%d synced:%d"
+
# translate-all.c
translate_block(void *tb, uintptr_t pc, uint8_t *tb_code) "tb:%p,
pc:0x%"PRIxPTR", tb_code:%p"
--
2.11.0