Messages in this thread | | | Date | Sat, 21 Sep 2002 02:24:23 +0530 | From | Dipankar Sarma <> | Subject | Re: 2.5.36-mm1 dbench 512 profiles |
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On Fri, Sep 20, 2002 at 08:32:48PM +0000, Hanna Linder wrote: > --On Friday, September 20, 2002 11:51:13 -0700 Hanna Linder <hannal@us.ibm.com> wrote: > > > > > Perhaps it is time to reconsider replacing fastwalk with dcache_rcu. > > These patches were written by Maneesh Soni. Since the Read-Copy Update > infrastructure has not been accepted into the mainline kernel yet (although > there were murmurings of it being acceptable) you will need to apply > those first. Here they are, apply in this order. Too big to post > inline text though. These are provided against 2.5.36-mm1. > > > http://prdownloads.sourceforge.net/lse/rcu_ltimer-2.5.36-mm1 > > http://prdownloads.sourceforge.net/lse/read_barrier_depends-2.5.36-mm1 > > http://prdownloads.sourceforge.net/lse/dcache_rcu-12-2.5.36-mm1 > > There has been quite a bit of testing done on this and it has proven > quite stable. If anyone wants to do any additional testing that would > be great.
Thanks for the vote of confidence :)
Now for some results (out of date, but also has results with backported code from 2.5) see http://lse.sf.net/locking/dcache/dcache.html.
Preliminary profiling of webserver benchmarks in 2.5.3X show similar potential for dcache_rcu. I will have actual results published when we can get formal runs done.
Thanks -- Dipankar Sarma <dipankar@in.ibm.com> http://lse.sourceforge.net Linux Technology Center, IBM Software Lab, Bangalore, India. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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