Re: [PATCH RFC V8 0/17] Paravirtualized ticket spinlocks
|[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]|
On 05/07/2012 02:02 PM, Avi Kivity wrote:
On 05/07/2012 11:29 AM, Ingo Molnar wrote:This is looking pretty good and complete now - any objections from anyone to trying this out in a separate x86 topic tree?No objections, instead an Acked-by: Avi Kivity<avi@xxxxxxxxxx>
Thank you. Here is a benchmark result with the patches. 3 guests with 8VCPU, 8GB RAM, 1 used for kernbench (kernbench -f -H -M -o 20) other for cpuhog (shell script while true with an instruction) unpinned scenario 1x: no hogs 2x: 8hogs in one guest 3x: 8hogs each in two guest BASE: 3.4-rc4 vanilla with CONFIG_PARAVIRT_SPINLOCK=n BASE+patch: 3.4-rc4 + debugfs + pv patches with CONFIG_PARAVIRT_SPINLOCK=yMachine : IBM xSeries with Intel(R) Xeon(R) x5570 2.93GHz CPU (Non PLE) with 8 core , 64GB RAM
(Less is better. Below is time elapsed in sec for x86_64_defconfig (3+3 runs)).
BASE BASE+patch %improvement mean (sd) mean (sd) case 1x: 66.0566 (74.0304) 61.3233 (68.8299) 7.16552 case 2x: 1253.2 (1795.74) 131.606 (137.358) 89.4984 case 3x: 3431.04 (5297.26) 134.964 (149.861) 96.0664Will be working on further analysis with other benchmarks (pgbench/sysbench/ebizzy...) and further optimization.
-- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
[Site Home] [Kernel Newbies] [Share Photos] [Security] [Netfilter] [Bugtraq] [Linux FS] [Photo] [Yosemite] [Yosemite News] [MIPS Linux] [ARM Linux] [Linux Security] [Linux RAID] [Samba] [Video 4 Linux] [Device Mapper] [Linux Resources]