Sysstat-12.7.4
Sysstat の概要
The Sysstat package contains
utilities to monitor system performance and usage activity.
Sysstat contains the sar utility, common to many
commercial Unixes, and tools you can schedule via cron to collect
and historize performance and activity data.
![[注記]](../images/note.png)
注記
LFS や依存パッケージが本ブックに示す最新安定バージョンでなかった場合には、BLFS
開発版においては、パッケージのビルドや処理実行が適切に行われないことがあります。
パッケージ情報
Sysstat の依存パッケージ
There are no build-time requirements for this package; however, it
is designed to be controlled by a cron daemon such as Fcron-3.2.1.
Sysstat のインストール
以下のコマンドを実行して Sysstat をビルドします。
sa_lib_dir=/usr/lib/sa \
sa_dir=/var/log/sa \
conf_dir=/etc/sysstat \
./configure --prefix=/usr \
--disable-file-attr &&
make
このパッケージには有効なテストスイートはありません。
root ユーザーになって以下を実行します。
make install
Install the systemd unit by running the following commands as the
root user:
install -v -m644 sysstat.service /usr/lib/systemd/system/sysstat.service &&
install -v -m644 cron/sysstat-collect.service /usr/lib/systemd/system/sysstat-collect.service &&
install -v -m644 cron/sysstat-collect.timer /usr/lib/systemd/system/sysstat-collect.timer &&
install -v -m644 cron/sysstat-summary.service /usr/lib/systemd/system/sysstat-summary.service &&
install -v -m644 cron/sysstat-summary.timer /usr/lib/systemd/system/sysstat-summary.timer
Fix the systemd unit by running the following command as the
root user:
sed -i "/^Also=/d" /usr/lib/systemd/system/sysstat.service
コマンド説明
sa_lib_dir: This environment variable
specifies the location of the package-specific library directory.
sa_dir: This environment variable
specifies the location of the directory containing the data files.
conf_dir: This environment variable
specifies the location of the system configuration directory.
--disable-file-attr: Do not
set attributes on files being installed. This parameter causes the
installation to ignore the man group variable resulting in the man
files having root: root ownership.
注記
Run ./configure
--help to see other influential environment
variables you can pass to configure. You may want to use
the history and compressafter variables to customize the amount of
data files kept on the system.
Sysstat の設定
設定ファイル
/etc/sysconfig/sysstat,
/etc/sysconfig/sysstat.ioconf
Cron 情報
To begin gathering Sysstat
history information, you must add to, or create a privileged
user's crontab. The history data location is /var/log/sa. The user running Sysstat utilities via cron must have write
access to this location.
Below is an example of what to install in the crontab. Adjust the
parameters to suit your needs. Use man sa1 and man sa2 for information about
the commands.
# 8am-7pm activity reports every 10 minutes during weekdays
0 8-18 * * 1-5 /usr/lib/sa/sa1 600 6 &
# 7pm-8am activity reports every hour during weekdays
0 19-7 * * 1-5 /usr/lib/sa/sa1 &
# Activity reports every hour on Saturday and Sunday
0 * * * 0,6 /usr/lib/sa/sa1 &
# Daily summary prepared at 19:05
5 19 * * * /usr/lib/sa/sa2 -A &
Ensure you submit the revised crontab to the cron daemon.
System Startup
Information
At system startup, a LINUX RESTART message must be inserted in
the daily data file to reinitialize the kernel counters. This can
be automated by enabling the previously installed systemd unit by
running the following command as the root user:
systemctl enable sysstat
パッケージ構成
インストールプログラム: cifsiostat, iostat, mpstat, pidstat, sadf, sar,
tapestat
インストールライブラリ: なし
インストールディレクトリ: /usr/lib/sa, /usr/share/doc/sysstat-12.7.4,
/var/log/sa
概略説明
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cifsiostat
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displays statistics about read and write operations on
CIFS filesystems
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iostat
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reports CPU statistics and input/output statistics for
devices and partitions
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mpstat
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writes activities for each available processor
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pidstat
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is used for monitoring individual tasks currently being
managed by the Linux kernel
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sadf
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is used for displaying the contents of data files created
by the sar
command. But unlike sar, sadf can write its data
in many different formats
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sar
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is used for displaying the contents of elected cumulative
activity counters in the operating system
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tapestat
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is used for monitoring the activity of tape drives
connected to a system
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