Xcode 3.2.3 is unbearably slow - garbage collection responsible?
Xcode 3.2.3 is unbearably slow - garbage collection responsible?
- Subject: Xcode 3.2.3 is unbearably slow - garbage collection responsible?
- From: Frank Illenberger <email@hidden>
- Date: Thu, 01 Jul 2010 00:22:21 +0200
Hi there,
with the current Mac application project I am working on, Xcode 3.2.3 has become unbearably slow. When I type some characters in the source code editor, the app gets slower and slower and after 10 characters or it gets totally unresponsive for about 4 seconds. I checked the activity of Xcode with Instruments' time profiler and found the following hot spots:
Running Time Running Count Self % Total % Self Run % Running % # Self # Samples ms Self Run ms Running Parent % Library Source Path Symbol Name
3288.0ms 35.5% Auto::MemoryScanner::scan_range(Auto::Range const&, Auto::WriteBarrier*)
2157.0ms 23.2% objc_layout_for_address
787.0ms 8.5% Auto::MemoryScanner::set_pending(void*)
510.0ms 5.5% bool Auto::visitAllocatedBlocks<Auto::scavenge_blocks_visitor>(Auto::Zone*, Auto::scavenge_blocks_visitor&)
331.0ms 3.5% bool Auto::visitAllocatedBlocks<Auto::scan_retained_blocks_visitor>(Auto::Zone*, Auto::scan_retained_blocks_visitor&)
It seems as Xcode is spending 3 seconds collecting garbage after having typed three characters in an editor window. Activity monitor says Xcode grabbed about 800MB of physical memory.
The Xcode project I am working on consists of seven framework projects and an application project.
Has anybody experienced a similar behavior or knows if there is a way to improve this?
Cheers
Frank
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