Erlang内置数据库挑战7000WQPS
November 26th, 2010
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本文链接地址: Erlang内置数据库挑战7000WQPS
在EUC-2010上rickard做了个报告,详细的解读了R14B读写锁优化的有效性,并且给出了benchmark, 详见这里 http://www.erlang.org/~rickard/euc-2010/。
优化的效果非常好,读写锁比NPTL内置的有好几倍的提升,我也来体验下。
我的测试是在Dell R815机器上测试的,以下是它的硬件配置.
获取的系统信息脚本这里下载。
# summary.sh Date | 2010-11-25 14:18:18 UTC (local TZ: CST +0800) Hostname | =i Uptime | 9:02, 7 users, load average: 10.27, 15.74, 11.78 System | Dell Inc.; PowerEdge R815; vNot Specified (<OUT OF SPEC>) Service Tag | 55SSW2X Release | Red Hat Enterprise Linux Server release 5.4 (Tikanga) Kernel | 2.6.18-164.el5 Architecture | CPU = 64-bit, OS = 64-bit Threading | NPTL 2.5 Compiler | GNU CC version 4.1.2 20080704 (Red Hat 4.1.2-44). SELinux | Disabled # Processor ################################################## Processors | physical = 4, cores = 48, virtual = 48, hyperthreading = no Speeds | 48x1900.026 Models | 48xAMD Opteron(tm) Processor 6168 Caches | 48x512 KB # Memory ##################################################### Total | 62.92G Free | 57.33G Used | physical = 5.60G, swap = 420.00k, virtual = 5.60G Buffers | 100.19M Caches | 186.92M Used | 5.20G Swappiness | vm.swappiness = 0 DirtyPolicy | vm.dirty_ratio = 40, vm.dirty_background_ratio = 10 ...
我的测试是这样的:
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