On Tue, 8 May 2007, Matt Mackall wrote: > First, SLOB no longer runs on SMP because SLAB grew some RCU-related > hair. So it now effectively has no locks at all!
Well it seems that SLOB was not well maintained. RCU has been around for a long time and SLOB has not been updated to cope with it. > Third, I don't think it's possible even in theory for a SLAB-like > allocator to be as efficient as SLOB simply due to the constraints of > putting only objects of the same size on a given page. So consider me > skeptical on the density claim. SLUB can put 32 objects sized 128 byte each in a 4k page. Can SLOB do the same? > It is usually better to use SLUB simply because you're more likely to > have 1GB of RAM rather than 4MB. SLUB should be perfectly fine for that environment provided you adjust the cacheline alignment and switch off SLUB debugging. define L1_CACHE_BYTES to be 4 or so. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
