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ANE/training/test_perf_stats.m

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Objective-C
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// test_perf_stats.m — What does _ANEPerformanceStats expose?
// Probe class methods, properties, instantiate, pass to request, read back.
#import <Foundation/Foundation.h>
#import <objc/runtime.h>
#import <objc/message.h>
#import <dlfcn.h>
#import <IOSurface/IOSurface.h>
#import <mach/mach_time.h>
static mach_timebase_info_data_t g_tb;
static double tb_ms(uint64_t t) { return (double)t * g_tb.numer / g_tb.denom / 1e6; }
static void dump_class(const char *name) {
Class cls = NSClassFromString([NSString stringWithUTF8String:name]);
if (!cls) { printf(" %s: NOT FOUND\n", name); return; }
printf("\n=== %s ===\n", name);
unsigned int count;
Method *methods = class_copyMethodList(object_getClass(cls), &count);
if (count) printf(" Class methods:\n");
for (unsigned int i = 0; i < count; i++) {
SEL s = method_getName(methods[i]);
const char *enc = method_getTypeEncoding(methods[i]);
printf(" + %s [%s]\n", sel_getName(s), enc ? enc : "?");
}
free(methods);
methods = class_copyMethodList(cls, &count);
if (count) printf(" Instance methods:\n");
for (unsigned int i = 0; i < count; i++) {
SEL s = method_getName(methods[i]);
const char *enc = method_getTypeEncoding(methods[i]);
printf(" - %s [%s]\n", sel_getName(s), enc ? enc : "?");
}
free(methods);
unsigned int pcount;
objc_property_t *props = class_copyPropertyList(cls, &pcount);
if (pcount) printf(" Properties:\n");
for (unsigned int i = 0; i < pcount; i++) {
const char *pname = property_getName(props[i]);
const char *pattr = property_getAttributes(props[i]);
printf(" @property %s [%s]\n", pname, pattr ? pattr : "?");
}
free(props);
}
static IOSurfaceRef make_surface(size_t bytes) {
return IOSurfaceCreate((__bridge CFDictionaryRef)@{
(id)kIOSurfaceWidth:@(bytes), (id)kIOSurfaceHeight:@1,
(id)kIOSurfaceBytesPerElement:@1, (id)kIOSurfaceBytesPerRow:@(bytes),
(id)kIOSurfaceAllocSize:@(bytes), (id)kIOSurfacePixelFormat:@0});
}
int main() {
@autoreleasepool {
setbuf(stdout, NULL);
mach_timebase_info(&g_tb);
dlopen("/System/Library/PrivateFrameworks/AppleNeuralEngine.framework/AppleNeuralEngine", RTLD_NOW);
printf("=== ANE Performance Stats Probe ===\n");
dump_class("_ANEPerformanceStats");
dump_class("_ANEPerfRequest");
dump_class("ANEPerfRequest");
dump_class("_ANEPerformanceCounters");
dump_class("_ANEDeviceInfo");
dump_class("_ANEModel");
dump_class("_ANEInMemoryModel");
dump_class("_ANERequest");
dump_class("_ANEIOSurfaceObject");
dump_class("_ANEInMemoryModelDescriptor");
dump_class("_ANEClient");
dump_class("_ANEVirtualClient");
// Try to instantiate _ANEPerformanceStats
printf("\n=== Instantiation Tests ===\n");
Class perfClass = NSClassFromString(@"_ANEPerformanceStats");
if (perfClass) {
@try {
id perfStats = [[perfClass alloc] init];
printf("_ANEPerformanceStats alloc/init: %s\n",
perfStats ? [[perfStats description] UTF8String] : "nil");
if (perfStats) {
unsigned int pcount;
objc_property_t *props = class_copyPropertyList(perfClass, &pcount);
for (unsigned int i = 0; i < pcount; i++) {
const char *pname = property_getName(props[i]);
@try {
id val = [perfStats valueForKey:[NSString stringWithUTF8String:pname]];
printf(" %s = %s\n", pname, val ? [[val description] UTF8String] : "nil");
} @catch (NSException *ex) {
printf(" %s = <exception: %s>\n", pname, [[ex reason] UTF8String]);
}
}
free(props);
}
} @catch (NSException *ex) {
printf("Exception: %s\n", [[ex reason] UTF8String]);
}
}
// Compile a working kernel and test perfStats in request
printf("\n=== Compile kernel and test perfStats in request ===\n");
Class g_D = NSClassFromString(@"_ANEInMemoryModelDescriptor");
Class g_I = NSClassFromString(@"_ANEInMemoryModel");
Class g_AR = NSClassFromString(@"_ANERequest");
Class g_AIO= NSClassFromString(@"_ANEIOSurfaceObject");
int CH = 64, SP = 32;
_Float16 *w = (_Float16*)calloc(CH*CH, sizeof(_Float16));
for (int i = 0; i < CH; i++) w[i*CH+i] = (_Float16)1.0f;
int ws = CH*CH*2, tot = 128+ws;
uint8_t *blob = (uint8_t*)calloc(tot,1);
blob[0]=1; blob[4]=2; blob[64]=0xEF; blob[65]=0xBE; blob[66]=0xAD; blob[67]=0xDE; blob[68]=1;
*(uint32_t*)(blob+72)=ws; *(uint32_t*)(blob+80)=128;
memcpy(blob+128, w, ws);
NSData *wdata = [NSData dataWithBytesNoCopy:blob length:tot freeWhenDone:YES];
free(w);
NSString *mil = [NSString stringWithFormat:
@"program(1.3)\n"
"[buildInfo = dict<string, string>({{\"coremlc-component-MIL\", \"3510.2.1\"}, "
"{\"coremlc-version\", \"3505.4.1\"}, {\"coremltools-component-milinternal\", \"\"}, "
"{\"coremltools-version\", \"9.0\"}})]\n"
"{\n"
" func main<ios18>(tensor<fp32, [1, %d, 1, %d]> x) {\n"
" string pt = const()[name=string(\"pt\"), val=string(\"valid\")];\n"
" tensor<int32, [2]> st = const()[name=string(\"st\"), val=tensor<int32, [2]>([1,1])];\n"
" tensor<int32, [4]> pd = const()[name=string(\"pd\"), val=tensor<int32, [4]>([0,0,0,0])];\n"
" tensor<int32, [2]> dl = const()[name=string(\"dl\"), val=tensor<int32, [2]>([1,1])];\n"
" int32 gr = const()[name=string(\"gr\"), val=int32(1)];\n"
" string to16 = const()[name=string(\"to16\"), val=string(\"fp16\")];\n"
" tensor<fp16, [1,%d,1,%d]> x16 = cast(dtype=to16,x=x)[name=string(\"cin\")];\n"
" tensor<fp16, [%d,%d,1,1]> W = const()[name=string(\"W\"), "
"val=tensor<fp16, [%d,%d,1,1]>(BLOBFILE(path=string(\"@model_path/weights/weight.bin\"), offset=uint64(64)))];\n"
" tensor<fp16, [1,%d,1,%d]> y16 = conv(dilations=dl,groups=gr,pad=pd,pad_type=pt,strides=st,weight=W,x=x16)"
"[name=string(\"conv\")];\n"
" string to32 = const()[name=string(\"to32\"), val=string(\"fp32\")];\n"
" tensor<fp32, [1,%d,1,%d]> y = cast(dtype=to32,x=y16)[name=string(\"cout\")];\n"
" } -> (y);\n"
"}\n", CH, SP, CH, SP, CH, CH, CH, CH, CH, SP, CH, SP];
NSData *md = [mil dataUsingEncoding:NSUTF8StringEncoding];
id desc = ((id(*)(Class,SEL,id,id,id))objc_msgSend)(g_D, @selector(modelWithMILText:weights:optionsPlist:),
md, @{@"@model_path/weights/weight.bin": @{@"offset":@0, @"data":wdata}}, nil);
id mdl = ((id(*)(Class,SEL,id))objc_msgSend)(g_I, @selector(inMemoryModelWithDescriptor:), desc);
id hx = ((id(*)(id,SEL))objc_msgSend)(mdl, @selector(hexStringIdentifier));
NSString *td = [NSTemporaryDirectory() stringByAppendingPathComponent:hx];
[[NSFileManager defaultManager] createDirectoryAtPath:[td stringByAppendingPathComponent:@"weights"]
withIntermediateDirectories:YES attributes:nil error:nil];
[md writeToFile:[td stringByAppendingPathComponent:@"model.mil"] atomically:YES];
[wdata writeToFile:[td stringByAppendingPathComponent:@"weights/weight.bin"] atomically:YES];
NSError *e = nil;
((BOOL(*)(id,SEL,unsigned int,id,NSError**))objc_msgSend)(mdl, @selector(compileWithQoS:options:error:), 21, @{}, &e);
((BOOL(*)(id,SEL,unsigned int,id,NSError**))objc_msgSend)(mdl, @selector(loadWithQoS:options:error:), 21, @{}, &e);
int ioBytes = CH * SP * 4; // fp32
IOSurfaceRef ioIn = make_surface(ioBytes);
IOSurfaceRef ioOut = make_surface(ioBytes);
id wI = ((id(*)(Class,SEL,IOSurfaceRef))objc_msgSend)(g_AIO, @selector(objectWithIOSurface:), ioIn);
id wO = ((id(*)(Class,SEL,IOSurfaceRef))objc_msgSend)(g_AIO, @selector(objectWithIOSurface:), ioOut);
// Try creating request WITH perfStats
if (perfClass) {
id perfStats = [[perfClass alloc] init];
printf(" Creating request with perfStats=%s\n", perfStats ? "non-nil" : "nil");
id req = ((id(*)(Class,SEL,id,id,id,id,id,id,id))objc_msgSend)(g_AR,
@selector(requestWithInputs:inputIndices:outputs:outputIndices:weightsBuffer:perfStats:procedureIndex:),
@[wI], @[@0], @[wO], @[@0], nil, perfStats, @0);
printf(" Request: %s\n", req ? "created" : "nil");
if (req) {
IOSurfaceLock(ioIn, 0, NULL);
float *inp = (float*)IOSurfaceGetBaseAddress(ioIn);
for (int i = 0; i < CH*SP; i++) inp[i] = 1.0f;
IOSurfaceUnlock(ioIn, 0, NULL);
BOOL ok = ((BOOL(*)(id,SEL,unsigned int,id,id,NSError**))objc_msgSend)(
mdl, @selector(evaluateWithQoS:options:request:error:), 21, @{}, req, &e);
printf(" Eval: %s\n", ok ? "OK" : [[e description] UTF8String]);
if (ok && perfStats) {
printf("\n PerfStats after 1 eval:\n");
unsigned int pcount;
objc_property_t *props = class_copyPropertyList(perfClass, &pcount);
for (unsigned int i = 0; i < pcount; i++) {
const char *pname = property_getName(props[i]);
@try {
id val = [perfStats valueForKey:[NSString stringWithUTF8String:pname]];
printf(" %s = %s\n", pname, val ? [[val description] UTF8String] : "nil");
} @catch (NSException *ex) {
printf(" %s = <exception>\n", pname);
}
}
free(props);
printf("\n Running 100 evals...\n");
uint64_t t0 = mach_absolute_time();
for (int i = 0; i < 100; i++) {
((BOOL(*)(id,SEL,unsigned int,id,id,NSError**))objc_msgSend)(
mdl, @selector(evaluateWithQoS:options:request:error:), 21, @{}, req, &e);
}
printf(" 100 evals in %.1fms (%.2fms/eval)\n",
tb_ms(mach_absolute_time()-t0), tb_ms(mach_absolute_time()-t0)/100.0);
printf("\n PerfStats after 101 evals:\n");
props = class_copyPropertyList(perfClass, &pcount);
for (unsigned int i = 0; i < pcount; i++) {
const char *pname = property_getName(props[i]);
@try {
id val = [perfStats valueForKey:[NSString stringWithUTF8String:pname]];
printf(" %s = %s\n", pname, val ? [[val description] UTF8String] : "nil");
} @catch (NSException *ex) {
printf(" %s = <exception>\n", pname);
}
}
free(props);
}
}
} else {
printf(" _ANEPerformanceStats class NOT FOUND\n");
}
// Cleanup
((BOOL(*)(id,SEL,unsigned int,NSError**))objc_msgSend)(mdl, @selector(unloadWithQoS:error:), 21, &e);
[[NSFileManager defaultManager] removeItemAtPath:td error:nil];
CFRelease(ioIn); CFRelease(ioOut);
}
return 0;
}
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