On Wed, 28 Mar 2007, Andrew Morton wrote: > I would like to test qlhack on ia64, because ia64 puts pte-pages into the > quicklists as well, but my ia64 machine is presently indisposed.
Its probably easier to set the number of cached pages to one. > My (much) preferred way to handle all this is to remove the quicklists from > all architectures: just use alloc_page() and free_page() for pte pages, pmd > pages, etc. I remain unaware of any testing whcih indicates that this > would be a bad change. Tried this also on x86_64 with an enhanced quicklist patch that also deals with ptes (at the price of not guaranteeing the free after the tlb flush): quicklist: real 8m56.787s user 7m46.380s sys 0m55.910s real 8m58.326s user 7m46.030s sys 0m56.250s real 8m56.900s user 7m46.620s sys 0m55.570s no quicklist: real 9m7.798s user 7m48.340s sys 0m58.360s real 8m58.994s user 7m47.980s sys 0m54.870s real 8m58.533s user 7m48.030s sys 0m54.150s Seems that there is a slight benefit but its also barely above noise level. - 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/
