Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 15 Nov 2001 16:11:29 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 15 Nov 2001 16:11:20 -0500 Received: from abasin.nj.nec.com ([138.15.150.16]:8969 "HELO abasin.nj.nec.com") by vger.kernel.org with SMTP id ; Thu, 15 Nov 2001 16:11:02 -0500 From: Sven Heinicke MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <15348.12126.264831.627333@abasin.nj.nec.com> Date: Thu, 15 Nov 2001 16:10:54 -0500 (EST) To: Andreas Schwab Cc: linux-kernel@vger.kernel.org Subject: Re: /proc/stat description for proc.txt In-Reply-To: In-Reply-To: <15347.57175.887835.525156@abasin.nj.nec.com> <20011115115939.I5739@lynx.no> <15348.8974.587924.655924@abasin.nj.nec.com> <20011115133734.P5739@lynx.no> <15348.10494.577151.173831@abasin.nj.nec.com> X-Mailer: VM 6.72 under 21.1 (patch 14) "Cuyahoga Valley" XEmacs Lucid Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Ok, now with Andreas Schwab, and Andreas Dilger's corrections. --- proc-copy.txt Thu Nov 15 15:05:39 2001 +++ proc.txt Thu Nov 15 16:08:12 2001 @@ -25,6 +25,7 @@ 1.5 SCSI info 1.6 Parallel port info in /proc/parport 1.7 TTY info in /proc/tty + 1.8 Kernel Statistics in /proc/stat 2 Modifying System Parameters 2.1 /proc/sys/fs - File system data @@ -223,7 +224,7 @@ rtc Real time clock scsi SCSI info (see text) slabinfo Slab pool info - stat Overall statistics + stat Overall statistics (1.8) swaps Swap space utilization sys See chapter 2 sysvipc Info of SysVIPC Resources (msg, sem, shm) (2.4) @@ -566,9 +567,9 @@ 1.7 TTY info in /proc/tty ------------------------- -Information about the available and actually used tty's can be found in the -directory /proc/tty.You'll find entries for drivers and line disciplines in -this directory, as shown in Table 1-9. +Information about the available and actually used tty's can be found +in the directory /proc/tty. You'll find entries for drivers and line +disciplines in this directory, as shown in Table 1-9. Table 1-9: Files in /proc/tty @@ -595,6 +596,53 @@ /dev/tty /dev/tty 5 0 system:/dev/tty unknown /dev/tty 4 1-63 console + +1.8 Kernel Statistics in /proc/stat +----------------------------------- + +General statistics about what the kernel has been doing is available +in the /proc/stat file. To view the statistics simply; + +$ cat /proc/stat +cpu 58903 1 7337 221340 +cpu0 58903 1 7337 221340 +page 97604 92120 +swap 1 0 +intr 571041 287581 3738 0 0 3 0 2 0 0 0 0 56043 202215 0 21398 61 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +disk_io: (3,0):(21459,9839,195208,11620,184240) +ctxt 1719440 +btime 1005238271 +processes 4997 + +The individual "cpu" entry will be the same as "cpu0" if you only have +one CPU on your system. Otherwise the "cpu" entry will be a total of +all the separate CPU statistics. The four numbers following "cpu" +entries are: user, nice, system and idle usage. These are stored in +jiffies. + +The two numbers following the "page" entry are number of pages going +in followed by the number of pages going out. Same goes for the +"swap" entry. + +The "intr" entry show the number of interrupts. The first number is +the total interrupts between all IRQs. The remaining numbers are the +interrupts for each IRQ in order. + +The "disk_io" shows data for each active disk. The above example only +shows one active disk. The first pair is the major followed by the +disk number entry. The others are: + - total number of I/O operations on this drive + - read I/O operations + - read I/O sectors + - write I/O operations + - write I/O sectors + +"ctxt" the contest switches. + +"btime" is the time the system booted. + +"processes" is the number of processes that have run since boot. This +includes forks, don't know if it includes threads. ------------------------------------------------------------------------------ Summary - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/