8、系统负载 8.1 说明 Load 就是对计算机干活多少的度量(WikiPedia:the system Load is a measure of the amount of work that a compute system is doing)简单的说是进程队列的长度。Load Average就是一段时间(1分钟、5分钟、15分钟)内平均Load。 8.2 分析工具 8.3 使用方式 //查看负载情况 uptime top vmsta...
sudo fio --name=randread --ioengine=libaio --iodepth=16 --rw=randread --bs=4k --direct=0 --size=512M --numjobs=4 --runtime=240 --group_reporting 你应该会看到下面这样的输出: ... fio-2.2.10 Starting 4 processes randread: Laying out IO file(s) (1 file(s) / 512MB) randread...
or RAID configuration) is running faster than the same database or application running on another server, you might want to make sure that the performance at the disk level is same on both the server. You can use iozone for this situation. ...
//查看网络IO sar -n DEV 1 //抓包以包为单位进行输出 tcpdump -i eth1 host 192.168.1.1 and port 80 //抓包以流为单位显示数据内容 tcpflow -cp host 192.168.1.1 8、系统负载8.1 说明 Load 就是对计算机干活多少的度量(WikiPedia:the system Load is a measure of the amount of work that a comput...
disk.io.msec_weighted_total:Measure of recent I/O completion time and backlog. disk.io.msec_write:Total number of ms spent by all writes. disk.io.read_merged:Adjacent read requests merged in a single req. disk.io.read_requests:Total number of reads completed successfully. ...
编译自: https://wpmojo.com/how-to-use-fio-to-measure-disk-performance-in-linux/ 作者: Alex Pearson 译者: Bestony Fio(Flexible I/O Tester) 是一款由 Jens Axboe 开发的用于测评和压力/硬件验证的 自由开源 的软件。 它支持 19 种不同类型的 I/O 引擎 (sync、mmap、libaio、posixaio、SG v3、spl...
disk.io.ios_in_progress:Number of actual I/O requests currently in flight. disk.io.msec_read:Total number of ms spent by all reads. disk.io.msec_total:Amount of time during which ios_in_progress >= 1. disk.io.msec_weighted_total:Measure of recent I/O completion time and backlog. ...
disk.io.ios_in_progress:Number of actual I/O requests currently in flight. disk.io.msec_read:Total number of ms spent by all reads. disk.io.msec_total:Amount of time during which ios_in_progress >= 1. disk.io.msec_weighted_total:Measure of recent I/O completion time and backlog. ...
//查看网络IO sar -n DEV 1 //抓包以包为单位进行输出 tcpdump -i eth1 host 192.168.1.1 and port 80 //抓包以流为单位显示数据内容 tcpflow -cp host 192.168.1.1 5、系统负载 5.1 说明 Load 就是对计算机干活多少的度量(WikiPedia:the system Load is a measure of the amount of work that a comp...
disk.io.msec_weighted_total:Measure of recent I/O completion time and backlog. disk.io.msec_write:Total number of ms spent by all writes. disk.io.read_merged:Adjacent read requests merged in a single req. disk.io.read_requests:Total number of reads completed successfully. ...