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Re: which pages of the file are in the cache

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Re: which pages of the file are in the cache

Subject: Re: which pages of the file are in the cache
From: Joel Reymont <email@hidden>
Date: Thu, 20 Aug 2009 12:04:00 +0100

I decided to step back for a second and run 'dapptrace -deoFU' to see what's going on.

The trace looks like this:

--- RELATIVE ELAPSD CPU CALL(args) = return 2083 . . -> dyld:ImageLoaderMachOCompressed::segmentCommandOffsets() const (0x8FE467C8, 0x0, 0xBFFFC608) 2084 71 1 <- dyld:ImageLoaderMachOCompressed::segmentCommandOffsets() const = 10

...

-> LaunchServices:_LSGetExtensionInfo(0xBFFFD00E, 0xD, 0xBFFFD224) 4004630 31 2 < - LaunchServices:_LSGetExtensionInfo = 332 4004633 . . -> LaunchServices:_LSCanSetExtensionHidden(0xBFFFE614, 0x1B06CF0, 0xBFFFD224) 4004635 37 2 < - LaunchServices:_LSCanSetExtensionHidden = 94 ---

Does this mean that 4s are spent in the dynamic linking phase?

The list of shared libraries used by firefox-bin and XUL is very large (below).

Running 'otool -l' I see nindirectsyms 7076 in the LC_DYSYMTAB section of XUL.

Am I correct that 4s are being spent in the dynamic linking and "system startup" phase? What actions can I take to speed things up if so?

	Thanks, Joel

P.S.

firefox-bin: /System/Library/Frameworks/Cocoa.framework/Versions/A/Cocoa (compatibility version 1.0.0, current version 12.0.0) @executable_path/XUL (compatibility version 1.0.0, current version 1.0.0) @executable_path/libmozjs.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libxpcom.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libplds4.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libplc4.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libnspr4.dylib (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/Carbon.framework/Versions/A/Carbon (compatibility version 2.0.0, current version 136.0.0) /System/Library/Frameworks/CoreAudio.framework/Versions/A/CoreAudio (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/AudioToolbox.framework/Versions/A/ AudioToolbox (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/AudioUnit.framework/Versions/A/AudioUnit (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/AddressBook.framework/Versions/A/ AddressBook (compatibility version 1.0.0, current version 700.0.0) /usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 7.4.0) /usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current version 1.0.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 111.1.4) ---

and

--- XUL: @executable_path/XUL (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/Cocoa.framework/Versions/A/Cocoa (compatibility version 1.0.0, current version 12.0.0) @executable_path/libsqlite3.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libmozjs.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libsmime3.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libssl3.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libnss3.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libnssutil3.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libsoftokn3.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libmozz.dylib (compatibility version 1.0.0, current version 1.0.0) /usr/lib/libcups.2.dylib (compatibility version 2.0.0, current version 2.8.0) @executable_path/libplds4.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libplc4.dylib (compatibility version 1.0.0, current version 1.0.0) @executable_path/libnspr4.dylib (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/ SystemConfiguration (compatibility version 1.0.0, current version 212.2.0) /System/Library/Frameworks/QuickTime.framework/Versions/A/QuickTime (compatibility version 1.0.0, current version 1290.0.0) /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit (compatibility version 1.0.0, current version 275.0.0) /usr/lib/libcrypto.0.9.7.dylib (compatibility version 0.9.7, current version 0.9.7) /System/Library/Frameworks/Carbon.framework/Versions/A/Carbon (compatibility version 2.0.0, current version 136.0.0) /System/Library/Frameworks/CoreAudio.framework/Versions/A/CoreAudio (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/AudioToolbox.framework/Versions/A/ AudioToolbox (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/AudioUnit.framework/Versions/A/AudioUnit (compatibility version 1.0.0, current version 1.0.0) /System/Library/Frameworks/AddressBook.framework/Versions/A/ AddressBook (compatibility version 1.0.0, current version 700.0.0) /usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 7.4.0) /usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current version 1.0.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 111.1.4) /usr/lib/libobjc.A.dylib (compatibility version 1.0.0, current version 227.0.0) /System/Library/Frameworks/CoreServices.framework/Versions/A/ CoreServices (compatibility version 1.0.0, current version 32.0.0) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/ CoreFoundation (compatibility version 150.0.0, current version 476.18.0) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/ ApplicationServices (compatibility version 1.0.0, current version 34.0.0) /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation (compatibility version 300.0.0, current version 677.24.0) /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit (compatibility version 45.0.0, current version 949.46.0)

---
faster mac firefox
  http://tinyco.de

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