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-rw-r--r--accel/tcg/translate-all.c23
-rw-r--r--tcg/tcg.c110
-rw-r--r--tcg/tcg.h38
3 files changed, 126 insertions, 45 deletions
diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c
index 7cd9ad5f9c..78c150af3e 100644
--- a/accel/tcg/translate-all.c
+++ b/accel/tcg/translate-all.c
@@ -310,6 +310,7 @@ static int cpu_restore_state_from_tb(CPUState *cpu, TranslationBlock *tb,
uint8_t *p = tb->tc.ptr + tb->tc.size;
int i, j, num_insns = tb->icount;
#ifdef CONFIG_PROFILER
+ TCGProfile *prof = &tcg_ctx->prof;
int64_t ti = profile_getclock();
#endif
@@ -344,8 +345,9 @@ static int cpu_restore_state_from_tb(CPUState *cpu, TranslationBlock *tb,
restore_state_to_opc(env, tb, data);
#ifdef CONFIG_PROFILER
- tcg_ctx->restore_time += profile_getclock() - ti;
- tcg_ctx->restore_count++;
+ atomic_set(&prof->restore_time,
+ prof->restore_time + profile_getclock() - ti);
+ atomic_set(&prof->restore_count, prof->restore_count + 1);
#endif
return 0;
}
@@ -1300,6 +1302,7 @@ TranslationBlock *tb_gen_code(CPUState *cpu,
tcg_insn_unit *gen_code_buf;
int gen_code_size, search_size;
#ifdef CONFIG_PROFILER
+ TCGProfile *prof = &tcg_ctx->prof;
int64_t ti;
#endif
assert_memory_lock();
@@ -1327,8 +1330,8 @@ TranslationBlock *tb_gen_code(CPUState *cpu,
tcg_ctx->tb_cflags = cflags;
#ifdef CONFIG_PROFILER
- tcg_ctx->tb_count1++; /* includes aborted translations because of
- exceptions */
+ /* includes aborted translations because of exceptions */
+ atomic_set(&prof->tb_count1, prof->tb_count1 + 1);
ti = profile_getclock();
#endif
@@ -1353,8 +1356,8 @@ TranslationBlock *tb_gen_code(CPUState *cpu,
}
#ifdef CONFIG_PROFILER
- tcg_ctx->tb_count++;
- tcg_ctx->interm_time += profile_getclock() - ti;
+ atomic_set(&prof->tb_count, prof->tb_count + 1);
+ atomic_set(&prof->interm_time, prof->interm_time + profile_getclock() - ti);
ti = profile_getclock();
#endif
@@ -1374,10 +1377,10 @@ TranslationBlock *tb_gen_code(CPUState *cpu,
tb->tc.size = gen_code_size;
#ifdef CONFIG_PROFILER
- tcg_ctx->code_time += profile_getclock() - ti;
- tcg_ctx->code_in_len += tb->size;
- tcg_ctx->code_out_len += gen_code_size;
- tcg_ctx->search_out_len += search_size;
+ atomic_set(&prof->code_time, prof->code_time + profile_getclock() - ti);
+ atomic_set(&prof->code_in_len, prof->code_in_len + tb->size);
+ atomic_set(&prof->code_out_len, prof->code_out_len + gen_code_size);
+ atomic_set(&prof->search_out_len, prof->search_out_len + search_size);
#endif
#ifdef DEBUG_DISAS
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 24ef6df6b5..f1bbfe37ff 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -1547,7 +1547,7 @@ void tcg_op_remove(TCGContext *s, TCGOp *op)
memset(op, 0, sizeof(*op));
#ifdef CONFIG_PROFILER
- s->del_op_count++;
+ atomic_set(&s->prof.del_op_count, s->prof.del_op_count + 1);
#endif
}
@@ -2715,15 +2715,79 @@ static void tcg_reg_alloc_call(TCGContext *s, TCGOp *op)
#ifdef CONFIG_PROFILER
-static int64_t tcg_table_op_count[NB_OPS];
+/* avoid copy/paste errors */
+#define PROF_ADD(to, from, field) \
+ do { \
+ (to)->field += atomic_read(&((from)->field)); \
+ } while (0)
+
+#define PROF_MAX(to, from, field) \
+ do { \
+ typeof((from)->field) val__ = atomic_read(&((from)->field)); \
+ if (val__ > (to)->field) { \
+ (to)->field = val__; \
+ } \
+ } while (0)
+
+/* Pass in a zero'ed @prof */
+static inline
+void tcg_profile_snapshot(TCGProfile *prof, bool counters, bool table)
+{
+ unsigned int i;
+
+ for (i = 0; i < n_tcg_ctxs; i++) {
+ const TCGProfile *orig = &tcg_ctxs[i]->prof;
+
+ if (counters) {
+ PROF_ADD(prof, orig, tb_count1);
+ PROF_ADD(prof, orig, tb_count);
+ PROF_ADD(prof, orig, op_count);
+ PROF_MAX(prof, orig, op_count_max);
+ PROF_ADD(prof, orig, temp_count);
+ PROF_MAX(prof, orig, temp_count_max);
+ PROF_ADD(prof, orig, del_op_count);
+ PROF_ADD(prof, orig, code_in_len);
+ PROF_ADD(prof, orig, code_out_len);
+ PROF_ADD(prof, orig, search_out_len);
+ PROF_ADD(prof, orig, interm_time);
+ PROF_ADD(prof, orig, code_time);
+ PROF_ADD(prof, orig, la_time);
+ PROF_ADD(prof, orig, opt_time);
+ PROF_ADD(prof, orig, restore_count);
+ PROF_ADD(prof, orig, restore_time);
+ }
+ if (table) {
+ int i;
+
+ for (i = 0; i < NB_OPS; i++) {
+ PROF_ADD(prof, orig, table_op_count[i]);
+ }
+ }
+ }
+}
+
+#undef PROF_ADD
+#undef PROF_MAX
+
+static void tcg_profile_snapshot_counters(TCGProfile *prof)
+{
+ tcg_profile_snapshot(prof, true, false);
+}
+
+static void tcg_profile_snapshot_table(TCGProfile *prof)
+{
+ tcg_profile_snapshot(prof, false, true);
+}
void tcg_dump_op_count(FILE *f, fprintf_function cpu_fprintf)
{
+ TCGProfile prof = {};
int i;
+ tcg_profile_snapshot_table(&prof);
for (i = 0; i < NB_OPS; i++) {
cpu_fprintf(f, "%s %" PRId64 "\n", tcg_op_defs[i].name,
- tcg_table_op_count[i]);
+ prof.table_op_count[i]);
}
}
#else
@@ -2736,6 +2800,9 @@ void tcg_dump_op_count(FILE *f, fprintf_function cpu_fprintf)
int tcg_gen_code(TCGContext *s, TranslationBlock *tb)
{
+#ifdef CONFIG_PROFILER
+ TCGProfile *prof = &s->prof;
+#endif
int i, oi, oi_next, num_insns;
#ifdef CONFIG_PROFILER
@@ -2743,15 +2810,15 @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb)
int n;
n = s->gen_op_buf[0].prev + 1;
- s->op_count += n;
- if (n > s->op_count_max) {
- s->op_count_max = n;
+ atomic_set(&prof->op_count, prof->op_count + n);
+ if (n > prof->op_count_max) {
+ atomic_set(&prof->op_count_max, n);
}
n = s->nb_temps;
- s->temp_count += n;
- if (n > s->temp_count_max) {
- s->temp_count_max = n;
+ atomic_set(&prof->temp_count, prof->temp_count + n);
+ if (n > prof->temp_count_max) {
+ atomic_set(&prof->temp_count_max, n);
}
}
#endif
@@ -2768,7 +2835,7 @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb)
#endif
#ifdef CONFIG_PROFILER
- s->opt_time -= profile_getclock();
+ atomic_set(&prof->opt_time, prof->opt_time - profile_getclock());
#endif
#ifdef USE_TCG_OPTIMIZATIONS
@@ -2776,8 +2843,8 @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb)
#endif
#ifdef CONFIG_PROFILER
- s->opt_time += profile_getclock();
- s->la_time -= profile_getclock();
+ atomic_set(&prof->opt_time, prof->opt_time + profile_getclock());
+ atomic_set(&prof->la_time, prof->la_time - profile_getclock());
#endif
liveness_pass_1(s);
@@ -2801,7 +2868,7 @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb)
}
#ifdef CONFIG_PROFILER
- s->la_time += profile_getclock();
+ atomic_set(&prof->la_time, prof->la_time + profile_getclock());
#endif
#ifdef DEBUG_DISAS
@@ -2834,7 +2901,7 @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb)
oi_next = op->next;
#ifdef CONFIG_PROFILER
- tcg_table_op_count[opc]++;
+ atomic_set(&prof->table_op_count[opc], prof->table_op_count[opc] + 1);
#endif
switch (opc) {
@@ -2915,10 +2982,17 @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb)
#ifdef CONFIG_PROFILER
void tcg_dump_info(FILE *f, fprintf_function cpu_fprintf)
{
- TCGContext *s = tcg_ctx;
- int64_t tb_count = s->tb_count;
- int64_t tb_div_count = tb_count ? tb_count : 1;
- int64_t tot = s->interm_time + s->code_time;
+ TCGProfile prof = {};
+ const TCGProfile *s;
+ int64_t tb_count;
+ int64_t tb_div_count;
+ int64_t tot;
+
+ tcg_profile_snapshot_counters(&prof);
+ s = &prof;
+ tb_count = s->tb_count;
+ tb_div_count = tb_count ? tb_count : 1;
+ tot = s->interm_time + s->code_time;
cpu_fprintf(f, "JIT cycles %" PRId64 " (%0.3f s at 2.4 GHz)\n",
tot, tot / 2.4e9);
diff --git a/tcg/tcg.h b/tcg/tcg.h
index cca85b4d85..4b9958a179 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -599,6 +599,26 @@ QEMU_BUILD_BUG_ON(sizeof(TCGOp) != 8 + sizeof(TCGArg) * MAX_OPC_PARAM);
QEMU_BUILD_BUG_ON(NB_OPS > (1 << 8));
QEMU_BUILD_BUG_ON(OPC_BUF_SIZE > (1 << 16));
+typedef struct TCGProfile {
+ int64_t tb_count1;
+ int64_t tb_count;
+ int64_t op_count; /* total insn count */
+ int op_count_max; /* max insn per TB */
+ int64_t temp_count;
+ int temp_count_max;
+ int64_t del_op_count;
+ int64_t code_in_len;
+ int64_t code_out_len;
+ int64_t search_out_len;
+ int64_t interm_time;
+ int64_t code_time;
+ int64_t la_time;
+ int64_t opt_time;
+ int64_t restore_count;
+ int64_t restore_time;
+ int64_t table_op_count[NB_OPS];
+} TCGProfile;
+
struct TCGContext {
uint8_t *pool_cur, *pool_end;
TCGPool *pool_first, *pool_current, *pool_first_large;
@@ -623,23 +643,7 @@ struct TCGContext {
tcg_insn_unit *code_ptr;
#ifdef CONFIG_PROFILER
- /* profiling info */
- int64_t tb_count1;
- int64_t tb_count;
- int64_t op_count; /* total insn count */
- int op_count_max; /* max insn per TB */
- int64_t temp_count;
- int temp_count_max;
- int64_t del_op_count;
- int64_t code_in_len;
- int64_t code_out_len;
- int64_t search_out_len;
- int64_t interm_time;
- int64_t code_time;
- int64_t la_time;
- int64_t opt_time;
- int64_t restore_count;
- int64_t restore_time;
+ TCGProfile prof;
#endif
#ifdef CONFIG_DEBUG_TCG
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-17 17:09:14 +0000