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contrib/plugins/hotblocks: migrate to new per_vcpu API

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Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20240304130036.124418-10-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240305121005.3528075-23-alex.bennee@linaro.org>
This commit is contained in:
Pierrick Bouvier 2024-03-05 12:09:58 +00:00 committed by Alex Bennée
parent dd0f775074
commit 2d0d551442
1 changed files with 30 additions and 20 deletions
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50
contrib/plugins/hotblocks.c
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@ -34,8 +34,8 @@ static guint64 limit = 20;
*/
typedef struct {
uint64_t start_addr;
uint64_t exec_count;
int trans_count;
struct qemu_plugin_scoreboard *exec_count;
int trans_count;
unsigned long insns;
} ExecCount;
@ -43,7 +43,17 @@ static gint cmp_exec_count(gconstpointer a, gconstpointer b)
{
ExecCount *ea = (ExecCount *) a;
ExecCount *eb = (ExecCount *) b;
return ea->exec_count > eb->exec_count ? -1 : 1;
uint64_t count_a =
qemu_plugin_u64_sum(qemu_plugin_scoreboard_u64(ea->exec_count));
uint64_t count_b =
qemu_plugin_u64_sum(qemu_plugin_scoreboard_u64(eb->exec_count));
return count_a > count_b ? -1 : 1;
}
static void exec_count_free(gpointer key, gpointer value, gpointer user_data)
{
ExecCount *cnt = value;
qemu_plugin_scoreboard_free(cnt->exec_count);
}
static void plugin_exit(qemu_plugin_id_t id, void *p)
@ -52,7 +62,6 @@ static void plugin_exit(qemu_plugin_id_t id, void *p)
GList *counts, *it;
int i;
g_mutex_lock(&lock);
g_string_append_printf(report, "%d entries in the hash table\n",
g_hash_table_size(hotblocks));
counts = g_hash_table_get_values(hotblocks);
@ -63,16 +72,21 @@ static void plugin_exit(qemu_plugin_id_t id, void *p)
for (i = 0; i < limit && it->next; i++, it = it->next) {
ExecCount *rec = (ExecCount *) it->data;
g_string_append_printf(report, "0x%016"PRIx64", %d, %ld, %"PRId64"\n",
rec->start_addr, rec->trans_count,
rec->insns, rec->exec_count);
g_string_append_printf(
report, "0x%016"PRIx64", %d, %ld, %"PRId64"\n",
rec->start_addr, rec->trans_count,
rec->insns,
qemu_plugin_u64_sum(
qemu_plugin_scoreboard_u64(rec->exec_count)));
}
g_list_free(it);
}
g_mutex_unlock(&lock);
qemu_plugin_outs(report->str);
g_hash_table_foreach(hotblocks, exec_count_free, NULL);
g_hash_table_destroy(hotblocks);
}
static void plugin_init(void)
@ -82,15 +96,9 @@ static void plugin_init(void)
static void vcpu_tb_exec(unsigned int cpu_index, void *udata)
{
ExecCount *cnt;
uint64_t hash = (uint64_t) udata;
g_mutex_lock(&lock);
cnt = (ExecCount *) g_hash_table_lookup(hotblocks, (gconstpointer) hash);
/* should always succeed */
g_assert(cnt);
cnt->exec_count++;
g_mutex_unlock(&lock);
ExecCount *cnt = (ExecCount *)udata;
qemu_plugin_u64_add(qemu_plugin_scoreboard_u64(cnt->exec_count),
cpu_index, 1);
}
/*
@ -114,18 +122,20 @@ static void vcpu_tb_trans(qemu_plugin_id_t id, struct qemu_plugin_tb *tb)
cnt->start_addr = pc;
cnt->trans_count = 1;
cnt->insns = insns;
cnt->exec_count = qemu_plugin_scoreboard_new(sizeof(uint64_t));
g_hash_table_insert(hotblocks, (gpointer) hash, (gpointer) cnt);
}
g_mutex_unlock(&lock);
if (do_inline) {
qemu_plugin_register_vcpu_tb_exec_inline(tb, QEMU_PLUGIN_INLINE_ADD_U64,
&cnt->exec_count, 1);
qemu_plugin_register_vcpu_tb_exec_inline_per_vcpu(
tb, QEMU_PLUGIN_INLINE_ADD_U64,
qemu_plugin_scoreboard_u64(cnt->exec_count), 1);
} else {
qemu_plugin_register_vcpu_tb_exec_cb(tb, vcpu_tb_exec,
QEMU_PLUGIN_CB_NO_REGS,
(void *)hash);
(void *)cnt);
}
}