Extreme Linux Performance Monitoring Part II

介绍linuxio监控和优化，文字简单到位。DiskIOsubsystemsaretheslowestpartofanyLinuxsystem.ThisisduemainlytotheirdistancefromtheCPUandthefactthatdisksrequirethephysicstowork(rotationandseek).Ifthetimetakentoaccessdiskasopposedtomemorywasconvertedintominutesandseconds,itisthedifferencebetween7