![]() You can also tell how much space the compression has saved from this output: The logicalSize for the resource fork is the size of the compressed data (6618026 bytes in this case), and the uncompressed size is 16652848 (the same size that the Finder reports). This output shows that the QuickTime X executable has the xattr (the xattr command line utility in 10.6 hides this attribute), which means that the file is compressed using HFS+ compression. $ sudo hfsdebug /Applications/QuickTime Player.app/Contents/MacOS/QuickTime Playerįork temperature = no HFC record in B-TreeĮxtents = startBlock blockCount % of fileġ616 allocation blocks in 1 extents total.ġ616.00 allocation blocks per extent on an average.ĪttrData = 66 70 6d 63 04 00 00 00 30 1a fe 00 00 00 00 00Ĭompression type = 4 (resource fork has compressed data)
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