Iometer project
Project [Team] [Get involved] [Donations] Software [Platforms] [Downloads] [Known Issues] [Screenshots] Resources [Documents] [Mailing Lists] [Links] As the Iometer User's Guide says, Iometer is an I/O subsystem measurement and characterization tool for single and clustered systems. It was originally developed by the Intel Corporation and announced at the Intel Developers Forum (IDF) on February 1
Kazuho at Work: Benchmarking SSD for MySQL
Today I bought Intel X25-M, to test its performance and consider if we could replace a HDD used in our slave database of Pathtraq with a solid state disk. Connecting the drive to a test server, I have just run a synthetic benchmark to check its performance for 16KB random access with O_DIRECT flag set, which is pretty similar to the access pattern we see in our daily InnoDB use.
SystemTapでMySQLのDisk I/Oを分析する - SH2の日記
実験エントリです。 動機 OracleのStatspack/AWRで取れるファイル単位のDisk I/O情報を、MySQLでも採取したい。これは次に示すようなデータです。 File IO Stats DB/Inst: ORA112/ORA112 Snaps: 6-7 ->Mx Rd Bkt: Max bucket time for single block read ->ordered by Tablespace, File Tablespace Filename ------------------------ ---------------------------------------------------- Av Mx Av Av Rd Rd Av Av Buffer BufWt Reads Reads/s (ms) Bkt Blks/Rd Writes Writes/s Wai
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