Note difference between sysstat on cent os 5 & 6

902 views
771 views

Published on

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。

Published in: Technology, Business
0 Comments
3 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
902
On SlideShare
0
From Embeds
0
Number of Embeds
25
Actions
Shares
0
Downloads
0
Comments
0
Likes
3
Embeds 0
No embeds

No notes for slide

Note difference between sysstat on cent os 5 & 6

  1. 1. Note: Difference betweensysstat on CentOS 5 & 6@sechiro2013.06.0113年6月2日日曜日
  2. 2. 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
  3. 3. Difference• Interval & Count• Memory & Swap• Disk• Network• Binary output incompatibility13年6月2日日曜日
  4. 4. 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
  5. 5. 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
  6. 6. 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
  7. 7. 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
  8. 8. 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
  9. 9. 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

×