system/qemu
system/qemu
1
0
Fork 0
mirror of https://gitlab.com/qemu-project/qemu synced 2024-11-05 20:35:44 +00:00
Code Issues Projects Releases Packages Wiki Activity

support for builtin profiler

Browse source 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1751 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2006-02-08 22:40:15 +00:00
parent 05c2a3e731
commit 5f1ce9487c
2 changed files with 81 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
cpu-all.h
View file

@ -867,4 +867,24 @@ void cpu_tlb_update_dirty(CPUState *env);
void dump_exec_info(FILE *f,
int (*cpu_fprintf)(FILE *f, const char *fmt, ...));
/* profiling */
#ifdef CONFIG_PROFILER
static inline int64_t profile_getclock(void)
{
int64_t val;
asm volatile ("rdtsc" : "=A" (val));
return val;
}
extern int64_t kqemu_time, kqemu_time_start;
extern int64_t qemu_time, qemu_time_start;
extern int64_t tlb_flush_time;
extern int64_t kqemu_exec_count;
extern int64_t dev_time;
extern int64_t kqemu_ret_int_count;
extern int64_t kqemu_ret_excp_count;
extern int64_t kqemu_ret_intr_count;
#endif
#endif /* CPU_ALL_H */

66
monitor.c
View file

@ -296,9 +296,6 @@ static void do_info_history (void)
static void do_quit(void)
{
#ifdef USE_KQEMU
kqemu_record_dump();
#endif
exit(0);
}
@ -960,12 +957,69 @@ static void do_info_kqemu(void)
return;
}
val = env->kqemu_enabled;
term_printf("kqemu is %s\n", val ? "enabled" : "disabled");
term_printf("kqemu support: ");
switch(val) {
default:
case 0:
term_printf("disabled\n");
break;
case 1:
term_printf("enabled for user code\n");
break;
case 2:
term_printf("enabled for user and kernel code\n");
break;
}
#else
term_printf("kqemu support is not compiled\n");
term_printf("kqemu support: not compiled\n");
#endif
}
#ifdef CONFIG_PROFILER
int64_t kqemu_time;
int64_t qemu_time;
int64_t kqemu_exec_count;
int64_t dev_time;
int64_t kqemu_ret_int_count;
int64_t kqemu_ret_excp_count;
int64_t kqemu_ret_intr_count;
static void do_info_profile(void)
{
int64_t total;
total = qemu_time;
if (total == 0)
total = 1;
term_printf("async time %lld (%0.3f)\n",
dev_time, dev_time / (double)ticks_per_sec);
term_printf("qemu time %lld (%0.3f)\n",
qemu_time, qemu_time / (double)ticks_per_sec);
term_printf("kqemu time %lld (%0.3f %0.1f%%) count=%lld int=%lld excp=%lld intr=%lld\n",
kqemu_time, kqemu_time / (double)ticks_per_sec,
kqemu_time / (double)total * 100.0,
kqemu_exec_count,
kqemu_ret_int_count,
kqemu_ret_excp_count,
kqemu_ret_intr_count);
qemu_time = 0;
kqemu_time = 0;
kqemu_exec_count = 0;
dev_time = 0;
kqemu_ret_int_count = 0;
kqemu_ret_excp_count = 0;
kqemu_ret_intr_count = 0;
#ifdef USE_KQEMU
kqemu_record_dump();
#endif
}
#else
static void do_info_profile(void)
{
term_printf("Internal profiler not compiled\n");
}
#endif
static term_cmd_t term_cmds[] = {
{ "help|?", "s?", do_help,
"[cmd]", "show the help" },
@ -1054,6 +1108,8 @@ static term_cmd_t info_cmds[] = {
"", "show guest USB devices", },
{ "usbhost", "", usb_host_info,
"", "show host USB devices", },
{ "profile", "", do_info_profile,
"", "show profiling information", },
{ NULL, NULL, },
};