diff options
Diffstat (limited to 'tests/plugin/bb.c')
-rw-r--r-- | tests/plugin/bb.c | 97 |
1 files changed, 84 insertions, 13 deletions
diff --git a/tests/plugin/bb.c b/tests/plugin/bb.c index df19fd3..e4cc7fd 100644 --- a/tests/plugin/bb.c +++ b/tests/plugin/bb.c @@ -16,24 +16,67 @@ QEMU_PLUGIN_EXPORT int qemu_plugin_version = QEMU_PLUGIN_VERSION; -static uint64_t bb_count; -static uint64_t insn_count; +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; + +/* 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) +{ + if (count->bb_count) { + g_string_append_printf(report, "CPU%d: " + "bb's: %" PRIu64", insns: %" PRIu64 "\n", + count->index, + count->bb_count, count->insn_count); + } +} static void plugin_exit(qemu_plugin_id_t id, void *p) { - g_autofree gchar *out = g_strdup_printf( - "bb's: %" PRIu64", insns: %" PRIu64 "\n", - bb_count, insn_count); - qemu_plugin_outs(out); + 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); + } + qemu_plugin_outs(report->str); +} + +static void vcpu_idle(qemu_plugin_id_t id, unsigned int cpu_index) +{ + CPUCount *count = g_ptr_array_index(counts, cpu_index); + g_autoptr(GString) report = g_string_new(""); + gen_one_cpu_report(count, report); + + if (report->len > 0) { + g_string_prepend(report, "Idling "); + qemu_plugin_outs(report->str); + } } static void vcpu_tb_exec(unsigned int cpu_index, void *udata) { - unsigned long n_insns = (unsigned long)udata; + CPUCount *count = max_cpus ? + g_ptr_array_index(counts, cpu_index) : &inline_count; - insn_count += n_insns; - bb_count++; + unsigned long n_insns = (unsigned long)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) @@ -42,9 +85,10 @@ static void vcpu_tb_trans(qemu_plugin_id_t id, struct qemu_plugin_tb *tb) if (do_inline) { qemu_plugin_register_vcpu_tb_exec_inline(tb, QEMU_PLUGIN_INLINE_ADD_U64, - &bb_count, 1); + &inline_count.bb_count, 1); qemu_plugin_register_vcpu_tb_exec_inline(tb, QEMU_PLUGIN_INLINE_ADD_U64, - &insn_count, n_insns); + &inline_count.insn_count, + n_insns); } else { qemu_plugin_register_vcpu_tb_exec_cb(tb, vcpu_tb_exec, QEMU_PLUGIN_CB_NO_REGS, @@ -56,8 +100,35 @@ QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id, const qemu_info_t *info, int argc, char **argv) { - if (argc && strcmp(argv[0], "inline") == 0) { - do_inline = true; + int i; + + for (i = 0; i < argc; i++) { + char *opt = argv[i]; + if (g_strcmp0(opt, "inline") == 0) { + do_inline = true; + } else if (g_strcmp0(opt, "idle") == 0) { + idle_report = true; + } else { + fprintf(stderr, "option parsing failed: %s\n", opt); + return -1; + } + } + + 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); + } + + if (idle_report) { + qemu_plugin_register_vcpu_idle_cb(id, vcpu_idle); } qemu_plugin_register_vcpu_tb_trans_cb(id, vcpu_tb_trans); |