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tests/plugin/bb: migrate to new per_vcpu API 

Reviewed-by: Luc Michel <luc.michel@amd.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20240304130036.124418-9-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240305121005.3528075-22-alex.bennee@linaro.org>
This commit is contained in:
Pierrick Bouvier 2024-03-05 12:09:57 +00:00 committed by Alex Bennée
parent 3d15c8d87e
commit dd0f775074
1 changed files with 26 additions and 37 deletions
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63
tests/plugin/bb.c
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@ -17,27 +17,25 @@
QEMU_PLUGIN_EXPORT int qemu_plugin_version = QEMU_PLUGIN_VERSION;
typedef struct {
GMutex lock;
int index;
uint64_t bb_count;
uint64_t insn_count;
} CPUCount;
/* Used by the inline & linux-user counts */
static bool do_inline;
static CPUCount inline_count;
static struct qemu_plugin_scoreboard *counts;
static qemu_plugin_u64 bb_count;
static qemu_plugin_u64 insn_count;
static bool do_inline;
/* Dump running CPU total on idle? */
static bool idle_report;
static GPtrArray *counts;
static int max_cpus;
static void gen_one_cpu_report(CPUCount *count, GString *report)
static void gen_one_cpu_report(CPUCount *count, GString *report,
unsigned int cpu_index)
{
if (count->bb_count) {
g_string_append_printf(report, "CPU%d: "
"bb's: %" PRIu64", insns: %" PRIu64 "\n",
count->index,
cpu_index,
count->bb_count, count->insn_count);
}
}
@ -46,20 +44,23 @@ static void plugin_exit(qemu_plugin_id_t id, void *p)
{
g_autoptr(GString) report = g_string_new("");
if (do_inline || !max_cpus) {
g_string_printf(report, "bb's: %" PRIu64", insns: %" PRIu64 "\n",
inline_count.bb_count, inline_count.insn_count);
} else {
g_ptr_array_foreach(counts, (GFunc) gen_one_cpu_report, report);
for (int i = 0; i < qemu_plugin_num_vcpus(); ++i) {
CPUCount *count = qemu_plugin_scoreboard_find(counts, i);
gen_one_cpu_report(count, report, i);
}
g_string_append_printf(report, "Total: "
"bb's: %" PRIu64", insns: %" PRIu64 "\n",
qemu_plugin_u64_sum(bb_count),
qemu_plugin_u64_sum(insn_count));
qemu_plugin_outs(report->str);
qemu_plugin_scoreboard_free(counts);
}
static void vcpu_idle(qemu_plugin_id_t id, unsigned int cpu_index)
{
CPUCount *count = g_ptr_array_index(counts, cpu_index);
CPUCount *count = qemu_plugin_scoreboard_find(counts, cpu_index);
g_autoptr(GString) report = g_string_new("");
gen_one_cpu_report(count, report);
gen_one_cpu_report(count, report, cpu_index);
if (report->len > 0) {
g_string_prepend(report, "Idling ");
@ -69,14 +70,11 @@ static void vcpu_idle(qemu_plugin_id_t id, unsigned int cpu_index)
static void vcpu_tb_exec(unsigned int cpu_index, void *udata)
{
CPUCount *count = max_cpus ?
g_ptr_array_index(counts, cpu_index) : &inline_count;
CPUCount *count = qemu_plugin_scoreboard_find(counts, cpu_index);
uintptr_t n_insns = (uintptr_t)udata;
g_mutex_lock(&count->lock);
count->insn_count += n_insns;
count->bb_count++;
g_mutex_unlock(&count->lock);
}
static void vcpu_tb_trans(qemu_plugin_id_t id, struct qemu_plugin_tb *tb)
@ -84,11 +82,10 @@ static void vcpu_tb_trans(qemu_plugin_id_t id, struct qemu_plugin_tb *tb)
size_t n_insns = qemu_plugin_tb_n_insns(tb);
if (do_inline) {
qemu_plugin_register_vcpu_tb_exec_inline(tb, QEMU_PLUGIN_INLINE_ADD_U64,
&inline_count.bb_count, 1);
qemu_plugin_register_vcpu_tb_exec_inline(tb, QEMU_PLUGIN_INLINE_ADD_U64,
&inline_count.insn_count,
n_insns);
qemu_plugin_register_vcpu_tb_exec_inline_per_vcpu(
tb, QEMU_PLUGIN_INLINE_ADD_U64, bb_count, 1);
qemu_plugin_register_vcpu_tb_exec_inline_per_vcpu(
tb, QEMU_PLUGIN_INLINE_ADD_U64, insn_count, n_insns);
} else {
qemu_plugin_register_vcpu_tb_exec_cb(tb, vcpu_tb_exec,
QEMU_PLUGIN_CB_NO_REGS,
@ -121,18 +118,10 @@ QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id,
}
}
if (info->system_emulation && !do_inline) {
max_cpus = info->system.max_vcpus;
counts = g_ptr_array_new();
for (i = 0; i < max_cpus; i++) {
CPUCount *count = g_new0(CPUCount, 1);
g_mutex_init(&count->lock);
count->index = i;
g_ptr_array_add(counts, count);
}
} else if (!do_inline) {
g_mutex_init(&inline_count.lock);
}
counts = qemu_plugin_scoreboard_new(sizeof(CPUCount));
bb_count = qemu_plugin_scoreboard_u64_in_struct(counts, CPUCount, bb_count);
insn_count = qemu_plugin_scoreboard_u64_in_struct(
counts, CPUCount, insn_count);
if (idle_report) {
qemu_plugin_register_vcpu_idle_cb(id, vcpu_idle);