Archive for the 'performance' Category
Wednesday, July 27th, 2011
russian ISP/network operators community forum: a post with live stats from a system system that routes ~ 10G/1.9Mpps of live traffic on Intel X520-2 82559EB card, 2 x Xeon E5620
Posted in 10G, intel, Linux, network, performance, router | Comments Off | permalink
Wednesday, July 27th, 2011
Posted in 10G, for:collidr, intel, Linux, network, performance, router | Comments Off | permalink
Friday, May 6th, 2011
HA Proxy [synthetic] benchmarks on 10Gbit traffic. Linux network stack is the bottle neck here, not HAProxy, i.e. you can 10G line rate on big frames and few connections.
Posted in 10G, benchmark, haproxy, hardware, http, Linux, loadbalancing, performance, proxy, scalability, sysadmin | Comments Off | permalink
Friday, May 6th, 2011
Posted in 10G, benchmark, haproxy, hardware, http, Linux, loadbalancing, performance, proxy, scalability, sysadmin | Comments Off | permalink
Friday, April 29th, 2011
blog posts that describes how MySQL InnoDB flushes data to disk (also see bgwriter, checkpoint_* parameters in PostgreSQL)
Posted in buffers, database, dba, inn, innodb, mysql, percona, performance, postgresql | Comments Off | permalink
Saturday, April 23rd, 2011
Sysbench-based benchmark comparing OLTP workloads for different builds and forks of MySQL on 64-core intel machine (Quad Intel Xeon L7555 ) . Only one definitive result is that MySQL cannot scale beyond 8 or 16 cores, or in some cases beyond just 2 cor…
Posted in benchmark, intel, Linux, mariadb, mysql, percona, performance, scalability | Comments Off | permalink
Tuesday, April 19th, 2011
Facebook has build custom web-app testing framework to test server performance. Read it, especially the section on why “standard” SPECxxx benchmarks are not a good measure of anything. Also, ready about performance-per-watt, as this is really import…
Posted in architecture, benchmark, datacenter, facebook, intel, performance, server, spec, testing | Comments Off | permalink
Tuesday, April 19th, 2011
a draft of the book “Scalability and Availability Aspects” by Walter Kriha. Many up-to-date info on theory and practice of building scalable high-loaded web/internet systems
Posted in architecture, books, high_load, performance, scalability | Comments Off | permalink
Friday, March 25th, 2011
Also see http://shader.kaist.edu/packetshader/io_engine/index.html and http://www.ndsl.kaist.edu/~kyoungsoo/papers/2010-lanman-100Gbps.pdf
Using latest x86 hardware and GPU to build a 100GB pc router / possible theoretically, but as of now, is not co…
Posted in 100GB, gpgpu, gpu, kernel, Linux, network, networking, performance, programming, router, routing, software | Comments Off | permalink
Wednesday, March 9th, 2011
asterisk performance tests done by Kolmesoft (manufacturer of voiop soft switch based on asterisk). ~ 500-600 stimult. calls,
in all cases seems to be limited by external factors (network, mysql on the same machi…
Posted in asterisk, hardware, performance, test, voip | Comments Off | permalink