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10.3: Use Activity Monitor to 'sample' running applications
How do I interpret the results? (I'm quite a newbie...) Safari hangs for 2-8 seconds frequently on various sites, so I guess that sampling would help in this case.
I turned sampling on during such a hang on macosxhints.com, and this is what resulted - could anybody take a short look at it? Thanks :-) 2003-12-01 22:32:05.923 sample[640] Couldn't start c++filt for C++ name demangling Analysis of sampling pid 535 every 10.000000 milliseconds Call graph: 195 Thread_0e0b 195 0xc714 195 0xc8a0 195 0x92eb9a1c 195 0x92dfd730 195 0xedd4 195 0x92de93fc 195 0x92dd2a80 195 0x927fe6d0 195 0x927dc640 195 0x927d5ecc 195 CFRunLoopRunSpecific 195 __CFRunLoopRun 195 __CFRunLoopDoTimer 195 __NSFireDelayedPerform 156 0x6ff48 156 +[NSPropertyListSerialization dataFromPropertyList:format:errorDescription:] 155 __CFBinaryPlistWriteToStream 150 _flattenPlist 150 _flattenPlist 150 _flattenPlist 150 _flattenPlist 121 _flattenPlist 120 CFSetAddValue 115 __CFSetGrow 111 __CFSetFindBuckets2 78 __plistUniquingEqual 52 CFEqual 35 __CFArrayEqual 23 CFEqual 12 CFEqual 11 __CFStringEqual 11 __CFStringEqual 10 __CFArrayEqual 2 __CFStringEqual 2 __CFStringEqual 11 CFEqual 5 CFEqual 5 CFEqual 1 __CFStringEqual 1 __CFStringEqual 16 CFGetTypeID 16 CFGetTypeID 5 __plistUniquingEqual 4 __CFArrayEqual 4 __CFArrayEqual 1 CFNumberGetTypeID 1 CFNumberGetTypeID 18 __CFSetFindBuckets2 9 CFGetTypeID 9 CFGetTypeID 5 CFEqual 5 CFEqual 1 __CFStringHash 1 __CFStringHash 3 __plistUniquingEqual 3 __plistUniquingEqual 1 __CFSetGrow 5 __CFSetFindBuckets2 4 __CFSetFindBuckets2 1 __plistUniquingEqual 1 CFGetTypeID 1 CFGetTypeID 1 CFSetGetValue 1 __CFSetFindBuckets1 1 __plistUniquingEqual 1 CFGetTypeID 1 CFGetTypeID 25 CFSetAddValue 24 __CFSetFindBuckets2 15 __plistUniquingEqual 9 CFEqual 4 CFEqual 4 __CFArrayEqual 2 __CF_INVOKE_CALLBACK 2 __CF_INVOKE_CALLBACK 1 CFEqual 1 CFEqual 1 __CFArrayEqual 1 CFEqual 1 CFEqual 4 CFGetTypeID 4 CFGetTypeID 1 __CFArrayEqual 1 __CFArrayEqual 1 __plistUniquingEqual 4 __CFSetFindBuckets2 3 CFEqual 3 CFEqual 2 CFGetTypeID 2 CFGetTypeID 1 __plistUniquingEqual 1 __plistUniquingEqual 3 CFSetGetValue 3 __CFSetFindBuckets1 2 CFGetTypeID 2 CFGetTypeID 1 __CFSetFindBuckets1 1 __memcpy 1 __memcpy 2 __CFBinaryPlistWriteToStream 1 CFDictionaryGetValue 1 CFDictionaryGetValue 1 CFRelease 1 __CFSetDeallocate 1 CFSetRemoveAllValues 1 CFRelease 1 CFRelease 1 CFStringGetBytes 1 CFStringGetBytes 1 0x9022a64c 1 0x9022a64c 33 0x246e8 33 0x9531e2ec 33 0x9531e37c 25 0x9531e43c 25 -[NSDictionary writeToURL:atomically:] 20 CFPropertyListCreateXMLData 13 _CFGenerateXMLPropertyListToData 13 _CFAppendXML0 13 _CFAppendXML0 12 _CFAppendXML0 4 CFArraySortValues 3 __CF_FAULT_CALLBACK 3 _dyld_image_containing_address 3 _dyld_image_containing_address 3 _dyld_get_image_header_containing_address 3 _dyld_get_image_header_containing_address 1 CFQSortArray 1 CFStringCompareWithOptions 1 CFStringCompareWithOptions 4 _CFAppendXML0 2 _plistAppendFormat 1 CFRelease 1 szone_free 1 szone_free 1 _CFStringCreateWithFormatAndArgumentsAux 1 CFRelease 1 szone_free 1 szone_free 1 CFDataAppendBytes 1 CFDataAppendBytes 1 _appendEscapedString 1 _appendEscapedString 2 _plistAppendCharacters 1 CFDataAppendBytes 1 CFDataAppendBytes 1 _plistAppendCharacters 1 CFDictionaryGetValue 1 __CFDictionaryFindBuckets1b 1 __CFDictionaryFindBuckets1b 1 _appendEscapedString 1 _plistAppendCharacters 1 _plistAppendCharacters 1 _CFArrayReplaceValues 1 _CFArrayReplaceValues 7 CFPropertyListIsValid 7 __CFPropertyListIsValidAux 7 CFDictionaryApplyFunction 7 __CFPropertyListIsDictPlistAux 7 __CFPropertyListIsValidAux 7 CFArrayApplyFunction 7 __CFPropertyListIsArrayPlistAux 7 __CFPropertyListIsValidAux 7 CFDictionaryApplyFunction 7 __CF_FAULT_CALLBACK 7 _dyld_image_containing_address 7 _dyld_image_containing_address 7 _dyld_get_image_header_containing_address 7 _dyld_get_image_header_containing_address 5 _NSIsPList 5 _NSIsPList 5 _NSIsPList 2 -[NSCFDictionary keyEnumerator] 1 CFDictionaryGetKeysAndValues 1 CFDictionaryGetKeysAndValues 1 NSAllocateObject 1 _internal_class_createInstanceFromZone 1 malloc_zone_calloc 1 0x900fac48 1 0x900fac48 2 _NSIsPList 2 _NSIsPList 1 NSAllocateObject 1 NSAllocateObject 8 0x9531e3dc 7 0x9530dfb0 4 0x953085b0 4 +[NSString stringWithFormat:] 4 _CFStringCreateWithFormatAndArgumentsAux 2 CFRelease 2 szone_free 2 szone_free 2 _CFStringAppendFormatAndArgumentsAux 1 _CFStringAppendFormatAndArgumentsAux 1 snprintf 1 __vfprintf 1 __dtoa 1 __dtoa 2 0x9530860c 2 -[NSCFDictionary setObject:forKey:] 1 CFDictionarySetValue 1 CFRetain 1 CFRetain 1 __CFDictionaryFindBuckets2 1 __CFDictionaryFindBuckets2 1 0x9530851c 1 -[NSCFDictionary setObject:forKey:] 1 CFDictionarySetValue 1 CFDictionarySetValue 1 0x9530dfc4 1 CFArrayAppendValue 1 _CFArrayReplaceValues 1 _CFArrayReplaceValues 4 0x6ff64 4 0x6edd8 4 0x73d64 4 0x9210e9a8 4 0x9210ee00 4 0x9210ef84 4 0x920f4c60 2 0x920f718c 1 0x9210f900 1 0x9210f900 1 0x92110170 1 0x92110170 1 0x920f7150 1 0x920f7150 1 0x920f719c 1 __memcpy 1 __memcpy 1 0x6ff94 1 -[NSData writeToFile:atomically:] 1 _NSWriteBytesToFile 1 fsync 1 fsync 1 0x6ffac 1 chmod 1 chmod 195 Thread_0f03 195 _pthread_body 195 __ape_agent 195 __ape_internal 195 mach_msg 195 mach_msg_trap 195 mach_msg_trap 195 Thread_1003 195 _pthread_body 195 forkThreadForFunction 195 0x953185b8 195 -[NSRunLoop run] 195 -[NSRunLoop runMode:beforeDate:] 195 CFRunLoopRunSpecific 195 __CFRunLoopRun 195 mach_msg 195 mach_msg_trap 195 mach_msg_trap 195 Thread_1103 195 _pthread_body 195 forkThreadForFunction 195 +[NSURLConnection(NSURLConnectionInternal) _resourceLoadLoop:] 195 -[NSRunLoop run] 195 -[NSRunLoop runMode:beforeDate:] 195 CFRunLoopRunSpecific 195 __CFRunLoopRun 195 mach_msg 195 mach_msg_trap 195 mach_msg_trap 195 Thread_1203 195 _pthread_body 195 _loadRunLoop 195 select 195 select 195 Thread_1303 195 _pthread_body 195 forkThreadForFunction 195 +[NSURLCache _diskCacheSyncLoop:] 195 -[NSRunLoop run] 195 -[NSRunLoop runMode:beforeDate:] 195 CFRunLoopRunSpecific 195 __CFRunLoopRun 195 mach_msg 195 mach_msg_trap 195 mach_msg_trap 195 Thread_1403 195 _pthread_body 195 forkThreadForFunction 195 0x92dca928 195 -[NSConditionLock lockWhenCondition:] 195 _pthread_cond_wait 195 semaphore_wait_signal_trap 195 semaphore_wait_signal_trap 195 Thread_1503 195 _pthread_body 195 0x9496f9cc 195 0x9487f7a0 195 0x9487f80c 195 mach_msg 195 mach_msg_trap 195 mach_msg_trap 195 Thread_1603 195 _pthread_body 195 0x9496f9cc 195 0x94897b8c 195 0x947f0480 195 0x947da944 195 0x947a7688 195 mach_msg 195 mach_msg_trap 195 mach_msg_trap 195 Thread_1703 195 _pthread_body 195 0x9496f9cc 195 0x948145d4 195 0x948cdeac 195 0x94829120 195 0x94818868 195 0x947dbce8 195 0x947ba0f8 195 0x8c1616c 195 0x8c18fb0 195 0x8c18fb0 195 0x8c1f580 195 0x947a7ae8 195 0x947ab3a4 195 0x947a2034 195 0x947a7608 195 mach_msg 195 mach_msg_trap 195 mach_msg_trap 195 Thread_1803 195 _pthread_body 195 0x9496f9cc 195 0x948145d4 195 0x948cdeac 195 0x94829120 195 0x94818868 195 0x947dbce8 195 0x947ba0f8 195 0x8c1616c 195 0x8c18ec0 195 0x8d5eda8 195 0x8d5f048 195 0x8d33ba4 195 0x947a7ae8 195 0x947ab3a4 195 0x947a2034 195 0x947a7608 195 mach_msg 195 mach_msg_trap 195 mach_msg_trap 195 Thread_1903 195 _pthread_body 195 0x9496f9cc 195 0x947b72d0 195 0x947b7130 195 0x947a7688 195 mach_msg 195 mach_msg_trap 195 mach_msg_trap 195 Thread_1a03 195 _pthread_body 195 0x9496f9cc 195 0x948145d4 195 0x948d2044 195 0x948d2e80 195 semaphore_wait_trap 195 semaphore_wait_trap 195 Thread_1b03 195 _pthread_body 195 0x9496f9cc 195 0x948145d4 195 0x947fda2c 195 0x94811ce0 195 0x947da9a4 195 0x947a7608 195 mach_msg 195 mach_msg_trap 195 mach_msg_trap 195 Thread_1c03 195 _pthread_body 195 0x9496f9cc 195 0x948145d4 195 0x948cdeac 195 0x94829120 195 0x94818868 195 0x947dbce8 195 0x947ba0f8 195 0x8c1616c 195 0x8c19310 195 0x8c18fb0 195 0x8c18fb0 195 0x8c1f580 195 0x947a7ae8 195 0x947ab3a4 195 0x947a2034 195 0x947a7608 195 mach_msg 195 mach_msg_trap 195 mach_msg_trap 195 Thread_1d03 195 _pthread_body 195 0x9496f9cc 195 0x948145d4 195 0x948cdeac 195 0x94829120 195 0x94818868 195 0x947dbce8 195 0x947ba0f8 195 0x8c1616c 195 0x8c18fb0 195 0x8c1f580 195 0x947a7ae8 195 0x947ab3a4 195 0x947a2034 195 0x947a7688 195 mach_msg 195 mach_msg_trap 195 mach_msg_trap 195 Thread_1e03 195 _pthread_body 195 0x9496f9cc 195 0x948145d4 195 0x948cdeac 195 0x94829120 195 0x94818868 195 0x947dbce8 195 0x947ba0f8 195 0x8c1616c 195 0x8c18fb0 195 0x8c18fb0 195 0x8c18fb0 195 0x8c18e30 195 0x8d6f134 195 0x8d41f98 195 0x8d33ba4 195 0x947a7ae8 195 0x947ab3a4 195 0x947a2034 195 0x947a7608 195 mach_msg 195 mach_msg_trap 195 mach_msg_trap 195 Thread_1f03 195 _pthread_body 195 0x9496f9cc 195 0x948145d4 195 0x948cdeac 195 0x94829120 195 0x94818868 195 0x947dbce8 195 0x947ba0f8 195 0x8c1616c 195 0x8c19310 195 0x8c18ec0 195 0x8d5eda8 195 0x8d5f048 195 0x8d33ba4 195 0x947a7ae8 195 0x947ab3a4 195 0x947a2034 195 0x947a7608 195 mach_msg 195 mach_msg_trap 195 mach_msg_trap 195 Thread_2003 195 _pthread_body 195 __CFSocketManager 195 select 195 select Total number in stack (recursive counted multiple, when >=5): 18 _pthread_body 14 mach_msg 14 mach_msg_trap 11 0x9496f9cc 8 0x8c18fb0 8 0x948145d4 8 CFEqual 7 CFGetTypeID 6 0x8c1616c 6 0x947a2034 6 0x947a7608 6 0x947a7ae8 6 0x947ab3a4 6 0x947ba0f8 6 0x947dbce8 6 0x94818868 6 0x94829120 6 0x948cdeac 6 __plistUniquingEqual 5 CFRelease 5 _flattenPlist Sort by top of stack, same collapsed (when >= 5): mach_msg_trap 2730 select 390 semaphore_wait_signal_trap 195 semaphore_wait_trap 195 CFEqual 42 CFGetTypeID 35 __CFSetFindBuckets2 26 __CFArrayEqual 16 __CFStringEqual 14 __plistUniquingEqual 10 _dyld_get_image_header_containing_address 10 Sample analysis of process 535 written to file /dev/stdout Sampling process 535 each 10 msecs 300 times |
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