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An Eye on your system Glances is a cross-platform system monitoring tool written in Python. View on GitHub CPU Memory Load Process list Network interface Disk I/O IRQ / Raid Sensors Filesystem (and folders) Container (Docker and Podman supported) Monitor Alert System info Uptime Quicklook (CPU, MEM, LOAD) Cross-platform Written in Python, Glances will run on almost any plaftorm : GNU/Linux, FreeBS
How to install runit Upgrading from previous versions of runit Benefits How to replace init How to use runit with current init How to use dietlibc Frequently asked questions Runlevels Service dependencies A collection of run scripts The runit program The runit-init program The sv program The runsvdir program The runsvchdir program The runsv program The svlogd program The chpst program The utmpset
Meta License: BSD-derived (http://www.repoze.org/LICENSE.txt) Author: Chris McDonough Tags supervisor, monitoring Superlance is a package of plugin utilities for monitoring and controlling processes that run under supervisor. Please see docs/index.rst for complete documentation. 2.0.0 (2021-12-26) Support for Python 2.6 has been dropped. On Python 2, Superlance now requires Python 2.7. Support for
I’ve shared a lot of Backblaze data about hard drive failure statistics. While our system handles a drive failing, we prefer to predict drive failures, and use the hard drives’ built-in SMART metrics to help. The dirty industry secret? SMART stats are inconsistent from hard drive to hard drive. With nearly 40,000 hard drives and over 100,000,000GB of data stored for customers, we have a lot of har
Caskey L. Dickson, Site Reliability Engineer, Google Inc. At Google we have discovered many common pitfalls and false simplifications that cause frustration and blind-spots with monitoring systems. Internally we have our own home-grown monitoring systems, but to move beyond the hit-and-miss approach to monitoring we have developed a formal model for such systems. This model is used as a framework
この頃はGraphiteやらInfluxDBがrrdtoolに取って代わられつつあるんでしょうが、rrdtoolのコマンド引数はいじってみると意外と楽しいものです(人によりますが)。このあいだ "rrdtool 誰が一番かっこいいグラフ描けるか選手権"— 桝原翔市 (@shoichimasuhara) April 4, 2014 とか思いつきで言いましたが、とりあえず序の口というか前座というか、とりあえずやって見るだけやってみようと思います MRTG とりあえず書くならこんな感じ MRTGのグラフを彷彿とさせますね。コマンドラインはこちら rrdtool graph shoichi.example.com_loadavg5_1.png \ --title "load average 5 of shoichi.example.com" \ --start end-1w --end now \
smem is a tool that can give numerous reports on memory usage on Linux systems. Unlike existing tools, smem can report proportional set size (PSS), which is a more meaningful representation of the amount of memory used by libraries and applications in a virtual memory system. Because large portions of physical memory are typically shared among multiple applications, the standard measure of memory
Starletのヘッダとボディを合わせて出力する閾値を変更してみる - Hateburo: kazeburo hatenablog この手の記事の話でコンテキストスイッチについて出てくることが あるけど、あまり数値が併記されているものがないように思えます。 その手のプロの人が言っているので、確かな情報だと思うのですが、 やはり数字を一緒に載せていただけるとより真実味が増すと思います。 プロセスのコンテキストスイッチ回数の確認方法(Linux) procfsから確認することができます % cat /proc/{目的のプロセスのPID}/status | grep ctxt voluntary_ctxt_switches: 145031 nonvoluntary_ctxt_switches: 13452自発的(voluntary)なコンテキストスイッチは、sched_yieldを呼び出した場合
Program against your datacenter like it’s a single pool of resources Apache Mesos abstracts CPU, memory, storage, and other compute resources away from machines (physical or virtual), enabling fault-tolerant and elastic distributed systems to easily be built and run effectively. Download Mesos Mesos 1.11.0 Changelog What is Mesos? A distributed systems kernel Mesos is built using the same principl
The document summarizes name changes to SAP Cloud Platform offerings as part of SAP's One Platform strategy. Key points: - SAP Cloud Platform has been retired and replaced by SAP Business Technology Platform (SAP BTP), which includes solutions for database/data, analytics, application development/integration, and intelligent technologies. - SAP Cloud Platform services are now organized into the SA
chrony is a versatile implementation of the Network Time Protocol (NTP). It can synchronise the system clock with NTP servers, reference clocks (e.g. GPS receiver), and manual input using wristwatch and keyboard. It can also operate as an NTPv4 (RFC 5905) server and peer to provide a time service to other computers in the network. It is designed to perform well in a wide range of conditions, inclu
Atop is an ASCII full-screen performance monitor for Linux that is capable of reporting the activity of all processes (even if processes have finished during the interval), daily logging of system and process activity for long-term analysis, highlighting overloaded system resources by using colors, etc. At regular intervals, it shows system-level activity related to the CPU, memory, swap, disks (i
Linuxカーネルには、センサーチップからの情報を取得するhwmonという仕組みがあり、マザーボードにセンサーチップがあって、かつ、hwmonのセンサードライバの中に、使用しているセンサーチップに対応しているものがあれば*1、lm_sensorsというツールを用いて各種温度を取得できる。対応していれば、各種電圧やファン回転数も取得できる。 ハードディスクの温度に関しては、温度取得の経路も方法も異なるため、別のツールhddtempを用いて取得する。 カーネルの設定 ディストリのカーネルではモジュールになっている可能性が高い。カスタムカーネルで、どのドライバを選べばよいのか分からない場合、使用されるモジュールが判明するまでは一通りモジュールとしてビルドし、次回のカーネルビルド以降、使用されていないものをビルドしない(無効にする)ようにするのがよい。 Device Drivers ---> <M
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