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Note  difference between sysstat on cent os 5 & 6
 

Note difference between sysstat on cent os 5 & 6

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Note difference between sysstat on cent os 5 & 6 ...

Note difference between sysstat on cent os 5 & 6
It is a reference that summarizes the differences in behavior of iostat and sar.
Please be careful about specification change because it contains a major part of the statistics.

sarやiostatの動作の違いについてまとめた資料です。
メモリ、ディスク、ネットワークなど、主要な部分で仕様変更がぼちぼち入っているのでお気をつけくださいませ。

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    Note  difference between sysstat on cent os 5 & 6 Note difference between sysstat on cent os 5 & 6 Presentation Transcript

    • Note: Difference betweensysstat on CentOS 5 & 6@sechiro2013.06.0113年6月2日日曜日
    • sysstat versions• CentOS 5.9• sysstat 7.0.2• CentOS 6.4• sysstat 9.0.4• pidstat13年6月2日日曜日
    • Difference• Interval & Count• Memory & Swap• Disk• Network• Binary output incompatibility13年6月2日日曜日
    • Interval & Count• Sysstat 7.0.2• If its value is set to zero, then reports aregenerated continuously. (ex: sar -A 1 0)• Sysstat 9.0.4• If the interval parameter is specified withoutthe count parameter, then reports aregenerated continuously. ( ex: sar -A 1)13年6月2日日曜日
    • Memory & Swap• Sysstat 7.0.2• -r: Report memory and swap spaceutilization statistics.• Sysstat 9.0.4• -r: Report memory utilization statistics.• -S: Report swap space utilization statistics.13年6月2日日曜日
    • Disk• Sysstat 7.0.2• -d, iostat: Displays statistics for blockdevices and all their partitions.• Sysstat 9.0.4• -dp: pretty-print block devices and LVMvolumes but no partitions are displayed• iostat -p: The -p option displays statistics forblock devices and all their partitions13年6月2日日曜日
    • Network• Sysstat 7.0.2• -n DEV• Displays network traffic in byte/s (ex:rxbyt/s, rxbyt/s)• Sysstat 9.0.4• -n DEV• Displays network traffic in kB/s (ex: rxkB/s, txkB/s)13年6月2日日曜日
    • Binary output incompatibility• -o output_file: create a binary output file.• Sysstat 7.0.2• The output file includes a part ofstatistics. Disk statistics are notincluded. So you should also specify “-d” or “-A” option.• Sysstat 9.0.4• The output file includes all of statisticswithout any additional options.13年6月2日日曜日
    • Binary output incompatibility• Incompatibility• You can’t read (using “-f” option) sysstat7.0.2’s binary output by sysstat 9.0.4 andreverse of this is also correct• You have to convert the binary output fileinto text output by the same version when itwas created.13年6月2日日曜日