#!/usr/sbin/dtrace -s /* * swapinfo.d - print virtual memory info (swap). * Written using DTrace (Solaris 10 3/05) * * Prints swap usage details for RAM and disk based swap. * This script is UNDER CONSTRUCTION, check for newer versions. * * $Id: swapinfo.d 3 2007-08-01 10:50:08Z brendan $ * * USAGE: swapinfo.d (check for newer versions) * * FIELDS: * RAM Total Total RAM installed * RAM Unusable RAM consumed by the OBP and TSBs * RAM Kernel Kernel resident in RAM (and usually locked) * RAM Locked Locked memory pages from swap (Anon) * RAM Used anon + exec + file pages used * RAM Free free memory + page cache free * Disk Total Total disk swap configured * Disk Resv Disk swap allocated + reserved * Disk Avail Disk swap available for reservation * Swap Total Total Virtual Memory usable * Swap Resv VM allocated + reserved * Swap Avail VM available for reservation * Swap MinFree VM kept free from reservations * * SEE ALSO: swapinfo - K9Toolkit, http://www.brendangregg.com/k9toolkit.html * vmstat 1 2; swap -s; echo ::memstat | mdb -k * RMCmem - The MemTool Package * RICHPse - The SE Toolkit * "Clearing up swap space confusion" Unix Insider, Adrian Cockcroft * "Solaris Internals", Jim Mauro, Richard McDougall * /usr/include/vm/anon.h, /usr/include/sys/systm.h * * COPYRIGHT: Copyright (c) 2005, 2006 Brendan Gregg. * * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at Docs/cddl1.txt * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * CDDL HEADER END * * Author: Brendan Gregg [Sydney, Australia] * * 11-Jun-2005 Brendan Gregg Created this. * 24-Apr-2006 " " Improved disk measurements; changed terms. * 24-Apr-2006 " " Last update. */ #pragma D option quiet #pragma D option bufsize=16k inline int DEBUG = 0; dtrace:::BEGIN { /* Debug stats */ this->ani_max = `k_anoninfo.ani_max; this->ani_phys_resv = `k_anoninfo.ani_phys_resv; this->ani_mem_resv = `k_anoninfo.ani_mem_resv; this->ani_locked = `k_anoninfo.ani_locked_swap; this->availrmem = `availrmem; /* RAM stats */ this->ram_total = `physinstalled; this->unusable = `physinstalled - `physmem; this->locked = `pages_locked; this->ram_used = `availrmem - `freemem; this->freemem = `freemem; this->kernel = `physmem - `pages_locked - `availrmem; /* Disk stats */ this->disk_total = `k_anoninfo.ani_max; this->disk_resv = `k_anoninfo.ani_phys_resv; this->disk_avail = this->disk_total - this->disk_resv; /* Total Swap stats */ this->minfree = `swapfs_minfree; this->reserve = `swapfs_reserve; /* this is TOTAL_AVAILABLE_SWAP from /usr/include/vm/anon.h, */ this->swap_total = `k_anoninfo.ani_max + (`availrmem - `swapfs_minfree > 0 ? `availrmem - `swapfs_minfree : 0); /* this is CURRENT_TOTAL_AVAILABLE_SWAP from /usr/include/vm/anon.h, */ this->swap_avail = `k_anoninfo.ani_max - `k_anoninfo.ani_phys_resv + (`availrmem - `swapfs_minfree > 0 ? `availrmem - `swapfs_minfree : 0); this->swap_resv = this->swap_total - this->swap_avail; /* Convert to Mbytes */ this->ani_phys_resv *= `_pagesize; this->ani_phys_resv /= 1048576; this->ani_mem_resv *= `_pagesize; this->ani_mem_resv /= 1048576; this->ani_locked *= `_pagesize; this->ani_locked /= 1048576; this->ani_max *= `_pagesize; this->ani_max /= 1048576; this->availrmem *= `_pagesize; this->availrmem /= 1048576; this->ram_total *= `_pagesize; this->ram_total /= 1048576; this->unusable *= `_pagesize; this->unusable /= 1048576; this->kernel *= `_pagesize; this->kernel /= 1048576; this->locked *= `_pagesize; this->locked /= 1048576; this->ram_used *= `_pagesize; this->ram_used /= 1048576; this->freemem *= `_pagesize; this->freemem /= 1048576; this->disk_total *= `_pagesize; this->disk_total /= 1048576; this->disk_resv *= `_pagesize; this->disk_resv /= 1048576; this->disk_avail *= `_pagesize; this->disk_avail /= 1048576; this->swap_total *= `_pagesize; this->swap_total /= 1048576; this->swap_avail *= `_pagesize; this->swap_avail /= 1048576; this->swap_resv *= `_pagesize; this->swap_resv /= 1048576; this->minfree *= `_pagesize; this->minfree /= 1048576; this->reserve *= `_pagesize; this->reserve /= 1048576; /* Print debug */ DEBUG ? printf("DEBUG availrmem %5d MB\n", this->availrmem) : 1; DEBUG ? printf("DEBUG freemem %5d MB\n", this->freemem) : 1; DEBUG ? printf("DEBUG ani_max %5d MB\n", this->ani_max) : 1; DEBUG ? printf("DEBUG ani_phys_re %5d MB\n", this->ani_phys_resv) : 1; DEBUG ? printf("DEBUG ani_mem_re %5d MB\n", this->ani_mem_resv) : 1; DEBUG ? printf("DEBUG ani_locked %5d MB\n", this->ani_locked) : 1; DEBUG ? printf("DEBUG reserve %5d MB\n", this->reserve) : 1; DEBUG ? printf("\n") : 1; /* Print report */ printf("RAM _______Total %5d MB\n", this->ram_total); printf("RAM Unusable %5d MB\n", this->unusable); printf("RAM Kernel %5d MB\n", this->kernel); printf("RAM Locked %5d MB\n", this->locked); printf("RAM Used %5d MB\n", this->ram_used); printf("RAM Free %5d MB\n", this->freemem); printf("\n"); printf("Disk _______Total %5d MB\n", this->disk_total); printf("Disk Resv %5d MB\n", this->disk_resv); printf("Disk Avail %5d MB\n", this->disk_avail); printf("\n"); printf("Swap _______Total %5d MB\n", this->swap_total); printf("Swap Resv %5d MB\n", this->swap_resv); printf("Swap Avail %5d MB\n", this->swap_avail); printf("Swap (Minfree) %5d MB\n", this->minfree); DEBUG ? printf("\nNow run other commands for confirmation.\n") : 1; ! DEBUG ? exit(0) : 1; }