Re: (at least smp) fc5 kernels after 1788 have excessive kerneloverhead

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Dave Jones wrote:

It's deliberate, as its profiling kernel allocations. (see /proc/kmalloc)

Will this hit a system with EXT3->LVM->MDRAID1 particularly hard? Took about two hours to do a local install (with a largish set of packages but not everything) which I seem to remember took about 3/4 of an hour before.

During installation ext3_xattr_block_set and r1bio_pool_alloc show as the top guzzlers, totalling 1.5 billion allocations between them, obviously plenty of disk writing going on ...

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