/
profiler.c
1519 lines (1345 loc) · 40.1 KB
/
profiler.c
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/*
* profiler.c: Profiler interface for Mono
*
* Author:
* Paolo Molaro (lupus@ximian.com)
*
* (C) 2001-2003 Ximian, Inc.
* (C) 2003-2006 Novell, Inc.
*/
#include "config.h"
#include "mono/metadata/profiler-private.h"
#include "mono/metadata/debug-helpers.h"
#include "mono/metadata/mono-debug.h"
#include "mono/metadata/debug-mono-symfile.h"
#include "mono/metadata/metadata-internals.h"
#include "mono/metadata/class-internals.h"
#include "mono/metadata/domain-internals.h"
#include "mono/metadata/gc-internal.h"
#include "mono/io-layer/io-layer.h"
#include "mono/utils/mono-dl.h"
#include <string.h>
#include <unistd.h>
#include <sys/time.h>
#ifdef HAVE_BACKTRACE_SYMBOLS
#include <execinfo.h>
#endif
static MonoProfiler * current_profiler = NULL;
static MonoProfileAppDomainFunc domain_start_load;
static MonoProfileAppDomainResult domain_end_load;
static MonoProfileAppDomainFunc domain_start_unload;
static MonoProfileAppDomainFunc domain_end_unload;
static MonoProfileAssemblyFunc assembly_start_load;
static MonoProfileAssemblyResult assembly_end_load;
static MonoProfileAssemblyFunc assembly_start_unload;
static MonoProfileAssemblyFunc assembly_end_unload;
static MonoProfileModuleFunc module_start_load;
static MonoProfileModuleResult module_end_load;
static MonoProfileModuleFunc module_start_unload;
static MonoProfileModuleFunc module_end_unload;
static MonoProfileClassFunc class_start_load;
static MonoProfileClassResult class_end_load;
static MonoProfileClassFunc class_start_unload;
static MonoProfileClassFunc class_end_unload;
static MonoProfileMethodFunc jit_start;
static MonoProfileMethodResult jit_end;
static MonoProfileJitResult jit_end2;
static MonoProfileMethodResult man_unman_transition;
static MonoProfileAllocFunc allocation_cb;
static MonoProfileStatFunc statistical_cb;
static MonoProfileMethodFunc method_enter;
static MonoProfileMethodFunc method_leave;
static MonoProfileThreadFunc thread_start;
static MonoProfileThreadFunc thread_end;
static MonoProfileCoverageFilterFunc coverage_filter_cb;
static MonoProfileFunc shutdown_callback;
static MonoProfileGCFunc gc_event;
static MonoProfileGCResizeFunc gc_heap_resize;
#define mono_profiler_coverage_lock() EnterCriticalSection (&profiler_coverage_mutex)
#define mono_profiler_coverage_unlock() LeaveCriticalSection (&profiler_coverage_mutex)
static CRITICAL_SECTION profiler_coverage_mutex;
/* this is directly accessible to other mono libs. */
MonoProfileFlags mono_profiler_events;
/**
* mono_profiler_install:
* @prof: a MonoProfiler structure pointer, or a pointer to a derived structure.
* @callback: the function to invoke at shutdown
*
* Use mono_profiler_install to activate profiling in the Mono runtime.
* Typically developers of new profilers will create a new structure whose
* first field is a MonoProfiler and put any extra information that they need
* to access from the various profiling callbacks there.
*
*/
void
mono_profiler_install (MonoProfiler *prof, MonoProfileFunc callback)
{
if (current_profiler)
g_error ("profiler already setup");
current_profiler = prof;
shutdown_callback = callback;
InitializeCriticalSection (&profiler_coverage_mutex);
}
/**
* mono_profiler_set_events:
* @events: an ORed set of values made up of MONO_PROFILER_ flags
*
* The events descriped in the @events argument is a set of flags
* that represent which profiling events must be triggered. For
* example if you have registered a set of methods for tracking
* JIT compilation start and end with mono_profiler_install_jit_compile,
* you will want to pass the MONO_PROFILE_JIT_COMPILATION flag to
* this routine.
*
* You can call mono_profile_set_events more than once and you can
* do this at runtime to modify which methods are invoked.
*/
void
mono_profiler_set_events (MonoProfileFlags events)
{
mono_profiler_events = events;
}
/**
* mono_profiler_get_events:
*
* Returns a list of active events that will be intercepted.
*/
MonoProfileFlags
mono_profiler_get_events (void)
{
return mono_profiler_events;
}
/**
* mono_profiler_install_enter_leave:
* @enter: the routine to be called on each method entry
* @fleave: the routine to be called each time a method returns
*
* Use this routine to install routines that will be called everytime
* a method enters and leaves. The routines will receive as an argument
* the MonoMethod representing the method that is entering or leaving.
*/
void
mono_profiler_install_enter_leave (MonoProfileMethodFunc enter, MonoProfileMethodFunc fleave)
{
method_enter = enter;
method_leave = fleave;
}
/**
* mono_profiler_install_jit_compile:
* @start: the routine to be called when the JIT process starts.
* @end: the routine to be called when the JIT process ends.
*
* Use this routine to install routines that will be called when JIT
* compilation of a method starts and completes.
*/
void
mono_profiler_install_jit_compile (MonoProfileMethodFunc start, MonoProfileMethodResult end)
{
jit_start = start;
jit_end = end;
}
void
mono_profiler_install_jit_end (MonoProfileJitResult end)
{
jit_end2 = end;
}
void
mono_profiler_install_thread (MonoProfileThreadFunc start, MonoProfileThreadFunc end)
{
thread_start = start;
thread_end = end;
}
void
mono_profiler_install_transition (MonoProfileMethodResult callback)
{
man_unman_transition = callback;
}
void
mono_profiler_install_allocation (MonoProfileAllocFunc callback)
{
allocation_cb = callback;
}
void
mono_profiler_install_statistical (MonoProfileStatFunc callback)
{
statistical_cb = callback;
}
void
mono_profiler_install_coverage_filter (MonoProfileCoverageFilterFunc callback)
{
coverage_filter_cb = callback;
}
void
mono_profiler_install_appdomain (MonoProfileAppDomainFunc start_load, MonoProfileAppDomainResult end_load,
MonoProfileAppDomainFunc start_unload, MonoProfileAppDomainFunc end_unload)
{
domain_start_load = start_load;
domain_end_load = end_load;
domain_start_unload = start_unload;
domain_end_unload = end_unload;
}
void
mono_profiler_install_assembly (MonoProfileAssemblyFunc start_load, MonoProfileAssemblyResult end_load,
MonoProfileAssemblyFunc start_unload, MonoProfileAssemblyFunc end_unload)
{
assembly_start_load = start_load;
assembly_end_load = end_load;
assembly_start_unload = start_unload;
assembly_end_unload = end_unload;
}
void
mono_profiler_install_module (MonoProfileModuleFunc start_load, MonoProfileModuleResult end_load,
MonoProfileModuleFunc start_unload, MonoProfileModuleFunc end_unload)
{
module_start_load = start_load;
module_end_load = end_load;
module_start_unload = start_unload;
module_end_unload = end_unload;
}
void
mono_profiler_install_class (MonoProfileClassFunc start_load, MonoProfileClassResult end_load,
MonoProfileClassFunc start_unload, MonoProfileClassFunc end_unload)
{
class_start_load = start_load;
class_end_load = end_load;
class_start_unload = start_unload;
class_end_unload = end_unload;
}
void
mono_profiler_method_enter (MonoMethod *method)
{
if ((mono_profiler_events & MONO_PROFILE_ENTER_LEAVE) && method_enter)
method_enter (current_profiler, method);
}
void
mono_profiler_method_leave (MonoMethod *method)
{
if ((mono_profiler_events & MONO_PROFILE_ENTER_LEAVE) && method_leave)
method_leave (current_profiler, method);
}
void
mono_profiler_method_jit (MonoMethod *method)
{
if ((mono_profiler_events & MONO_PROFILE_JIT_COMPILATION) && jit_start)
jit_start (current_profiler, method);
}
void
mono_profiler_method_end_jit (MonoMethod *method, MonoJitInfo* jinfo, int result)
{
if ((mono_profiler_events & MONO_PROFILE_JIT_COMPILATION)) {
if (jit_end)
jit_end (current_profiler, method, result);
if (jit_end2)
jit_end2 (current_profiler, method, jinfo, result);
}
}
void
mono_profiler_code_transition (MonoMethod *method, int result)
{
if ((mono_profiler_events & MONO_PROFILE_TRANSITIONS) && man_unman_transition)
man_unman_transition (current_profiler, method, result);
}
void
mono_profiler_allocation (MonoObject *obj, MonoClass *klass)
{
if ((mono_profiler_events & MONO_PROFILE_ALLOCATIONS) && allocation_cb)
allocation_cb (current_profiler, obj, klass);
}
void
mono_profiler_stat_hit (guchar *ip, void *context)
{
if ((mono_profiler_events & MONO_PROFILE_STATISTICAL) && statistical_cb)
statistical_cb (current_profiler, ip, context);
}
void
mono_profiler_thread_start (gsize tid)
{
if ((mono_profiler_events & MONO_PROFILE_THREADS) && thread_start)
thread_start (current_profiler, tid);
}
void
mono_profiler_thread_end (gsize tid)
{
if ((mono_profiler_events & MONO_PROFILE_THREADS) && thread_end)
thread_end (current_profiler, tid);
}
void
mono_profiler_assembly_event (MonoAssembly *assembly, int code)
{
if (!(mono_profiler_events & MONO_PROFILE_ASSEMBLY_EVENTS))
return;
switch (code) {
case MONO_PROFILE_START_LOAD:
if (assembly_start_load)
assembly_start_load (current_profiler, assembly);
break;
case MONO_PROFILE_START_UNLOAD:
if (assembly_start_unload)
assembly_start_unload (current_profiler, assembly);
break;
case MONO_PROFILE_END_UNLOAD:
if (assembly_end_unload)
assembly_end_unload (current_profiler, assembly);
break;
default:
g_assert_not_reached ();
}
}
void
mono_profiler_assembly_loaded (MonoAssembly *assembly, int result)
{
if ((mono_profiler_events & MONO_PROFILE_ASSEMBLY_EVENTS) && assembly_end_load)
assembly_end_load (current_profiler, assembly, result);
}
void
mono_profiler_module_event (MonoImage *module, int code)
{
if (!(mono_profiler_events & MONO_PROFILE_MODULE_EVENTS))
return;
switch (code) {
case MONO_PROFILE_START_LOAD:
if (module_start_load)
module_start_load (current_profiler, module);
break;
case MONO_PROFILE_START_UNLOAD:
if (module_start_unload)
module_start_unload (current_profiler, module);
break;
case MONO_PROFILE_END_UNLOAD:
if (module_end_unload)
module_end_unload (current_profiler, module);
break;
default:
g_assert_not_reached ();
}
}
void
mono_profiler_module_loaded (MonoImage *module, int result)
{
if ((mono_profiler_events & MONO_PROFILE_MODULE_EVENTS) && module_end_load)
module_end_load (current_profiler, module, result);
}
void
mono_profiler_class_event (MonoClass *klass, int code)
{
if (!(mono_profiler_events & MONO_PROFILE_CLASS_EVENTS))
return;
switch (code) {
case MONO_PROFILE_START_LOAD:
if (class_start_load)
class_start_load (current_profiler, klass);
break;
case MONO_PROFILE_START_UNLOAD:
if (class_start_unload)
class_start_unload (current_profiler, klass);
break;
case MONO_PROFILE_END_UNLOAD:
if (class_end_unload)
class_end_unload (current_profiler, klass);
break;
default:
g_assert_not_reached ();
}
}
void
mono_profiler_class_loaded (MonoClass *klass, int result)
{
if ((mono_profiler_events & MONO_PROFILE_CLASS_EVENTS) && class_end_load)
class_end_load (current_profiler, klass, result);
}
void
mono_profiler_appdomain_event (MonoDomain *domain, int code)
{
if (!(mono_profiler_events & MONO_PROFILE_APPDOMAIN_EVENTS))
return;
switch (code) {
case MONO_PROFILE_START_LOAD:
if (domain_start_load)
domain_start_load (current_profiler, domain);
break;
case MONO_PROFILE_START_UNLOAD:
if (domain_start_unload)
domain_start_unload (current_profiler, domain);
break;
case MONO_PROFILE_END_UNLOAD:
if (domain_end_unload)
domain_end_unload (current_profiler, domain);
break;
default:
g_assert_not_reached ();
}
}
void
mono_profiler_appdomain_loaded (MonoDomain *domain, int result)
{
if ((mono_profiler_events & MONO_PROFILE_APPDOMAIN_EVENTS) && domain_end_load)
domain_end_load (current_profiler, domain, result);
}
void
mono_profiler_shutdown (void)
{
if (current_profiler && shutdown_callback)
shutdown_callback (current_profiler);
}
void
mono_profiler_gc_heap_resize (gint64 new_size)
{
if ((mono_profiler_events & MONO_PROFILE_GC) && gc_heap_resize)
gc_heap_resize (current_profiler, new_size);
}
void
mono_profiler_gc_event (MonoGCEvent event, int generation)
{
if ((mono_profiler_events & MONO_PROFILE_GC) && gc_event)
gc_event (current_profiler, event, generation);
}
void
mono_profiler_install_gc (MonoProfileGCFunc callback, MonoProfileGCResizeFunc heap_resize_callback)
{
mono_gc_enable_events ();
gc_event = callback;
gc_heap_resize = heap_resize_callback;
}
static GHashTable *coverage_hash = NULL;
MonoProfileCoverageInfo*
mono_profiler_coverage_alloc (MonoMethod *method, int entries)
{
MonoProfileCoverageInfo *res;
if (coverage_filter_cb)
if (! (*coverage_filter_cb) (current_profiler, method))
return NULL;
mono_profiler_coverage_lock ();
if (!coverage_hash)
coverage_hash = g_hash_table_new (NULL, NULL);
res = g_malloc0 (sizeof (MonoProfileCoverageInfo) + sizeof (void*) * 2 * entries);
res->entries = entries;
g_hash_table_insert (coverage_hash, method, res);
mono_profiler_coverage_unlock ();
return res;
}
/* safe only when the method antive code has been unloaded */
void
mono_profiler_coverage_free (MonoMethod *method)
{
MonoProfileCoverageInfo* info;
mono_profiler_coverage_lock ();
if (!coverage_hash) {
mono_profiler_coverage_unlock ();
return;
}
info = g_hash_table_lookup (coverage_hash, method);
if (info) {
g_free (info);
g_hash_table_remove (coverage_hash, method);
}
mono_profiler_coverage_unlock ();
}
/**
* mono_profiler_coverage_get:
* @prof: The profiler handle, installed with mono_profiler_install
* @method: the method to gather information from.
* @func: A routine that will be called back with the results
*
* If the MONO_PROFILER_INS_COVERAGE flag was active during JIT compilation
* it is posisble to obtain coverage information about a give method.
*
* The function @func will be invoked repeatedly with instances of the
* MonoProfileCoverageEntry structure.
*/
void
mono_profiler_coverage_get (MonoProfiler *prof, MonoMethod *method, MonoProfileCoverageFunc func)
{
MonoProfileCoverageInfo* info;
int i, offset;
guint32 code_size;
const unsigned char *start, *end, *cil_code;
MonoMethodHeader *header;
MonoProfileCoverageEntry entry;
MonoDebugMethodInfo *debug_minfo;
mono_profiler_coverage_lock ();
info = g_hash_table_lookup (coverage_hash, method);
mono_profiler_coverage_unlock ();
if (!info)
return;
header = mono_method_get_header (method);
start = mono_method_header_get_code (header, &code_size, NULL);
debug_minfo = mono_debug_lookup_method (method);
end = start + code_size;
for (i = 0; i < info->entries; ++i) {
cil_code = info->data [i].cil_code;
if (cil_code && cil_code >= start && cil_code < end) {
char *fname = NULL;
offset = cil_code - start;
entry.iloffset = offset;
entry.method = method;
entry.counter = info->data [i].count;
entry.line = entry.col = 1;
entry.filename = NULL;
if (debug_minfo) {
MonoDebugSourceLocation *location;
location = mono_debug_symfile_lookup_location (debug_minfo, offset);
if (location) {
entry.line = location->row;
entry.col = location->column;
entry.filename = fname = g_strdup (location->source_file);
mono_debug_free_source_location (location);
}
}
func (prof, &entry);
g_free (fname);
}
}
}
#ifndef DISABLE_PROFILER
/*
* Small profiler extracted from mint: we should move it in a loadable module
* and improve it to do graphs and more accurate timestamping with rdtsc.
*/
static FILE* poutput = NULL;
#define USE_X86TSC 0
#define USE_WIN32COUNTER 0
#if USE_X86TSC
typedef struct {
unsigned int lows, highs, lowe, highe;
} MonoRdtscTimer;
#define rdtsc(low,high) \
__asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high))
static int freq;
static double
rdtsc_elapsed (MonoRdtscTimer *t)
{
unsigned long long diff;
unsigned int highe = t->highe;
if (t->lowe < t->lows)
highe--;
diff = (((unsigned long long) highe - t->highs) << 32) + (t->lowe - t->lows);
return ((double)diff / freq) / 1000000; /* have to return the result in seconds */
}
static int
have_rdtsc (void) {
char buf[256];
int have_freq = 0;
int have_flag = 0;
float val;
FILE *cpuinfo;
if (!(cpuinfo = fopen ("/proc/cpuinfo", "r")))
return 0;
while (fgets (buf, sizeof(buf), cpuinfo)) {
if (sscanf (buf, "cpu MHz : %f", &val) == 1) {
/*printf ("got mh: %f\n", val);*/
have_freq = val;
}
if (strncmp (buf, "flags", 5) == 0) {
if (strstr (buf, "tsc")) {
have_flag = 1;
/*printf ("have tsc\n");*/
}
}
}
fclose (cpuinfo);
return have_flag? have_freq: 0;
}
#define MONO_TIMER_STARTUP \
if (!(freq = have_rdtsc ())) g_error ("Compiled with TSC support, but none found");
#define MONO_TIMER_TYPE MonoRdtscTimer
#define MONO_TIMER_INIT(t)
#define MONO_TIMER_DESTROY(t)
#define MONO_TIMER_START(t) rdtsc ((t).lows, (t).highs);
#define MONO_TIMER_STOP(t) rdtsc ((t).lowe, (t).highe);
#define MONO_TIMER_ELAPSED(t) rdtsc_elapsed (&(t))
#elif USE_WIN32COUNTER
#include <windows.h>
typedef struct {
LARGE_INTEGER start, stop;
} MonoWin32Timer;
static int freq;
static double
win32_elapsed (MonoWin32Timer *t)
{
LONGLONG diff = t->stop.QuadPart - t->start.QuadPart;
return ((double)diff / freq) / 1000000; /* have to return the result in seconds */
}
static int
have_win32counter (void) {
LARGE_INTEGER f;
if (!QueryPerformanceFrequency (&f))
return 0;
return f.LowPart;
}
#define MONO_TIMER_STARTUP \
if (!(freq = have_win32counter ())) g_error ("Compiled with Win32 counter support, but none found");
#define MONO_TIMER_TYPE MonoWin32Timer
#define MONO_TIMER_INIT(t)
#define MONO_TIMER_DESTROY(t)
#define MONO_TIMER_START(t) QueryPerformanceCounter (&(t).start)
#define MONO_TIMER_STOP(t) QueryPerformanceCounter (&(t).stop)
#define MONO_TIMER_ELAPSED(t) win32_elapsed (&(t))
#else
typedef struct {
GTimeVal start, stop;
} MonoGLibTimer;
static double
timeval_elapsed (MonoGLibTimer *t)
{
if (t->start.tv_usec > t->stop.tv_usec) {
t->stop.tv_usec += G_USEC_PER_SEC;
t->stop.tv_sec--;
}
return (t->stop.tv_sec - t->start.tv_sec)
+ ((double)(t->stop.tv_usec - t->start.tv_usec))/ G_USEC_PER_SEC;
}
#define MONO_TIMER_STARTUP
#define MONO_TIMER_TYPE MonoGLibTimer
#define MONO_TIMER_INIT(t)
#define MONO_TIMER_DESTROY(t)
#define MONO_TIMER_START(t) g_get_current_time (&(t).start)
#define MONO_TIMER_STOP(t) g_get_current_time (&(t).stop)
#define MONO_TIMER_ELAPSED(t) timeval_elapsed (&(t))
#endif
typedef struct _AllocInfo AllocInfo;
typedef struct _CallerInfo CallerInfo;
typedef struct _LastCallerInfo LastCallerInfo;
struct _MonoProfiler {
GHashTable *methods;
MonoMemPool *mempool;
/* info about JIT time */
MONO_TIMER_TYPE jit_timer;
double jit_time;
double max_jit_time;
MonoMethod *max_jit_method;
int methods_jitted;
GSList *per_thread;
/* chain of callers for the current thread */
LastCallerInfo *callers;
/* LastCallerInfo nodes for faster allocation */
LastCallerInfo *cstorage;
};
typedef struct {
MonoMethod *method;
guint64 count;
double total;
AllocInfo *alloc_info;
CallerInfo *caller_info;
} MethodProfile;
typedef struct _MethodCallProfile MethodCallProfile;
struct _MethodCallProfile {
MethodCallProfile *next;
MONO_TIMER_TYPE timer;
MonoMethod *method;
};
struct _AllocInfo {
AllocInfo *next;
MonoClass *klass;
guint64 count;
guint64 mem;
};
struct _CallerInfo {
CallerInfo *next;
MonoMethod *caller;
guint count;
};
struct _LastCallerInfo {
LastCallerInfo *next;
MonoMethod *method;
MONO_TIMER_TYPE timer;
};
static MonoProfiler*
create_profiler (void)
{
MonoProfiler *prof = g_new0 (MonoProfiler, 1);
prof->methods = g_hash_table_new (mono_aligned_addr_hash, NULL);
MONO_TIMER_INIT (prof->jit_timer);
prof->mempool = mono_mempool_new ();
return prof;
}
#if 1
#ifdef HAVE_KW_THREAD
static __thread MonoProfiler * tls_profiler;
# define GET_PROFILER() tls_profiler
# define SET_PROFILER(x) tls_profiler = (x)
# define ALLOC_PROFILER() /* nop */
#else
static guint32 profiler_thread_id = -1;
# define GET_PROFILER() ((MonoProfiler *)TlsGetValue (profiler_thread_id))
# define SET_PROFILER(x) TlsSetValue (profiler_thread_id, x);
# define ALLOC_PROFILER() profiler_thread_id = TlsAlloc ()
#endif
#define GET_THREAD_PROF(prof) do { \
MonoProfiler *_tprofiler = GET_PROFILER (); \
if (!_tprofiler) { \
_tprofiler = create_profiler (); \
prof->per_thread = g_slist_prepend (prof->per_thread, _tprofiler); \
SET_PROFILER (_tprofiler); \
} \
prof = _tprofiler; \
} while (0)
#else
/* thread unsafe but faster variant */
#define GET_THREAD_PROF(prof)
#endif
static gint
compare_profile (MethodProfile *profa, MethodProfile *profb)
{
return (gint)((profb->total - profa->total)*1000);
}
static void
build_profile (MonoMethod *m, MethodProfile *prof, GList **funcs)
{
prof->method = m;
*funcs = g_list_insert_sorted (*funcs, prof, (GCompareFunc)compare_profile);
}
static char*
method_get_name (MonoMethod* method)
{
char *sig, *res;
sig = mono_signature_get_desc (mono_method_signature (method), FALSE);
res = g_strdup_printf ("%s%s%s::%s(%s)", method->klass->name_space,
method->klass->name_space ? "." : "", method->klass->name,
method->name, sig);
g_free (sig);
return res;
}
static void output_callers (MethodProfile *p);
/* This isn't defined on older glib versions and on some platforms */
#ifndef G_GUINT64_FORMAT
#define G_GUINT64_FORMAT "ul"
#endif
#ifndef G_GINT64_FORMAT
#define G_GINT64_FORMAT "lld"
#endif
static void
output_profile (GList *funcs)
{
GList *tmp;
MethodProfile *p;
char *m;
guint64 total_calls = 0;
if (funcs)
fprintf (poutput, "Time(ms) Count P/call(ms) Method name\n");
for (tmp = funcs; tmp; tmp = tmp->next) {
p = tmp->data;
total_calls += p->count;
if (!(gint)(p->total*1000))
continue;
m = method_get_name (p->method);
fprintf (poutput, "########################\n");
fprintf (poutput, "% 8.3f ", (double) (p->total * 1000));
fprintf (poutput, "%7" G_GUINT64_FORMAT " ", (unsigned long long)p->count);
fprintf (poutput, "% 8.3f ", (double) (p->total * 1000)/(double)p->count);
fprintf (poutput, " %s\n", m);
g_free (m);
/* callers */
output_callers (p);
}
fprintf (poutput, "Total number of calls: %" G_GINT64_FORMAT "\n", (long long)total_calls);
}
typedef struct {
MethodProfile *mp;
guint64 count;
} NewobjProfile;
static gint
compare_newobj_profile (NewobjProfile *profa, NewobjProfile *profb)
{
if (profb->count == profa->count)
return 0;
else
return profb->count > profa->count ? 1 : -1;
}
static void
build_newobj_profile (MonoClass *class, MethodProfile *mprof, GList **funcs)
{
NewobjProfile *prof = g_new (NewobjProfile, 1);
AllocInfo *tmp;
guint64 count = 0;
prof->mp = mprof;
/* we use the total amount of memory to sort */
for (tmp = mprof->alloc_info; tmp; tmp = tmp->next)
count += tmp->mem;
prof->count = count;
*funcs = g_list_insert_sorted (*funcs, prof, (GCompareFunc)compare_newobj_profile);
}
static int
compare_caller (CallerInfo *a, CallerInfo *b)
{
return b->count - a->count;
}
static int
compare_alloc (AllocInfo *a, AllocInfo *b)
{
return b->mem - a->mem;
}
static GSList*
sort_alloc_list (AllocInfo *ai)
{
GSList *l = NULL;
AllocInfo *tmp;
for (tmp = ai; tmp; tmp = tmp->next) {
l = g_slist_insert_sorted (l, tmp, (GCompareFunc)compare_alloc);
}
return l;
}
static GSList*
sort_caller_list (CallerInfo *ai)
{
GSList *l = NULL;
CallerInfo *tmp;
for (tmp = ai; tmp; tmp = tmp->next) {
l = g_slist_insert_sorted (l, tmp, (GCompareFunc)compare_caller);
}
return l;
}
static void
output_callers (MethodProfile *p) {
guint total_callers, percent;
GSList *sorted, *tmps;
CallerInfo *cinfo;
char *m;
fprintf (poutput, " Callers (with count) that contribute at least for 1%%:\n");
total_callers = 0;
for (cinfo = p->caller_info; cinfo; cinfo = cinfo->next) {
total_callers += cinfo->count;
}
sorted = sort_caller_list (p->caller_info);
for (tmps = sorted; tmps; tmps = tmps->next) {
cinfo = tmps->data;
percent = (cinfo->count * 100)/total_callers;
if (percent < 1)
continue;
m = method_get_name (cinfo->caller);
fprintf (poutput, " %8d % 3d %% %s\n", cinfo->count, percent, m);
g_free (m);
}
}
static void
output_newobj_profile (GList *proflist)
{
GList *tmp;
NewobjProfile *p;
MethodProfile *mp;
AllocInfo *ainfo;
MonoClass *klass;
const char* isarray;
char buf [256];
char *m;
guint64 total = 0;
GSList *sorted, *tmps;
fprintf (poutput, "\nAllocation profiler\n");
if (proflist)
fprintf (poutput, "%-9s %s\n", "Total mem", "Method");
for (tmp = proflist; tmp; tmp = tmp->next) {
p = tmp->data;
total += p->count;
if (p->count < 50000)
continue;
mp = p->mp;
m = method_get_name (mp->method);
fprintf (poutput, "########################\n%8" G_GUINT64_FORMAT " KB %s\n", (p->count / 1024), m);
g_free (m);
sorted = sort_alloc_list (mp->alloc_info);
for (tmps = sorted; tmps; tmps = tmps->next) {
ainfo = tmps->data;
if (ainfo->mem < 50000)
continue;
klass = ainfo->klass;
if (klass->rank) {
isarray = "[]";
klass = klass->element_class;
} else {
isarray = "";
}
g_snprintf (buf, sizeof (buf), "%s%s%s%s",
klass->name_space, klass->name_space ? "." : "", klass->name, isarray);
fprintf (poutput, " %8" G_GUINT64_FORMAT " KB %8" G_GUINT64_FORMAT " %-48s\n", (ainfo->mem / 1024), ainfo->count, buf);
}
/* callers */
output_callers (mp);
}
fprintf (poutput, "Total memory allocated: %" G_GUINT64_FORMAT " KB\n", total / 1024);
}
static void
merge_methods (MonoMethod *method, MethodProfile *profile, MonoProfiler *prof)
{
MethodProfile *mprof;
AllocInfo *talloc_info, *alloc_info;
CallerInfo *tcaller_info, *caller_info;
mprof = g_hash_table_lookup (prof->methods, method);
if (!mprof) {
/* the master thread didn't see this method, just transfer the info as is */
g_hash_table_insert (prof->methods, method, profile);
return;