Document ID: 110739 | |
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Introduction
This document provides information on how to maintain and check system memory size on the Cisco ASR 1000 Series Aggregation Services Routers (ASR). This document applies to all Cisco IOS XE software releases that support the Cisco ASR 1000 Series Aggregation Services Routers.
Prerequisites
Requirements
There are no specific requirements for this document.
Components Used
The information in this document is based on these software and hardware versions:
-
All Cisco ASR 1000 Series Aggregation Services Routers, which includes 1002, 1004 and 1006 routers.
-
All Cisco IOS XE software releases that support the Cisco ASR 1000 Series Aggregation Services Routers.
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.
Conventions
Refer to Cisco Technical Tips Conventions for more information on document conventions.
Memory Usage Overview
The route processor (RP) of the Cisco ASR 1000 Series Aggregation Services Router has synchronous dynamic RAM (SDRAM), which provides storage for code, data and packets. The RP offers memory scalability up to 4 GB for ASR1000-RP1 and 16 GB for ASR1000-RP2.
Cisco ASR 1000 Series Aggregation Services Routers introduce the Cisco IOS XE Software as their software architecture. Based on Cisco IOS Software, Cisco IOS XE Software is a modular operating system built on a Linux kernel on route processor. IOS daemon (IOSd) runs as a standard user-level process under Linux and provides the Cisco IOS feature set, which includes routing protocols. Upon startup, IOSd is granted access to a fixed amount of physical memory on the RP typically 50 percent or 1 GB on 2 GB systems and 2 GB on 4 GB systems. Dual IOS operation with 2/4RU chassis with 4GB of Main Memory for software redundancy each consume 1 GB.
In order to display memory size, software, hardware, and web interface version information, use the show version command.
Router#show version
Cisco IOS Software, IOS-XE Software (PPC_LINUX_IOSD-ADVIPSERVICESK9-M),
Version 12.2(33)XNB, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Fri 05-Sep-08 08:56 by mcpre
Cisco IOS-XE software, Copyright (c) 1986-2008 by Cisco Systems, Inc.
All rights reserved. Certain components of Cisco IOS-XE software are
licensed under the GNU General Public License ("GPL") Version 2.0. The
software code licensed under GPL Version 2.0 is free software that comes
with ABSOLUTELY NO WARRANTY. You can redistribute and/or modify such
GPL code under the terms of GPL Version 2.0. For more details, see the
documentation or "License Notice" file accompanying the IOS-XE software,
or the applicable URL provided on the flyer accompanying the IOS-XE
software.
ROM: IOS-XE ROMMON
ASR1006b uptime is 6 days, 21 hours, 49 minutes
Uptime for this control processor is 6 days, 21 hours, 51 minutes
System returned to ROM by reload at 15:35:57 JST Thu Feb 5 2009
System restarted at 15:40:15 JST Thu Feb 5 2009
System image file is "bootflash:packages.conf"
Last reload reason: Reload command
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cisco ASR1006 (RP1) processor with 1779130K/6147K bytes of memory.
!--- total memory allocated to IOSd.
16 Gigabit Ethernet interfaces
21 Gigabit Ethernet interfaces
2 Ten Gigabit Ethernet interfaces
32768K bytes of non-volatile configuration memory.
4194304K bytes of physical memory.
!--- IOS-XE total memory size.
955063K bytes of eUSB flash at bootflash:.
39004543K bytes of SATA hard disk at harddisk:.
Configuration register is 0x2102
Check Memory Usage
Check Memory Usage within IOSd
The show processes command displays information about the active processes. Issue show processes memory to show the amount of memory used within IOSd.
Router#show processes memory Processor Pool Total: 1821391588 Used: 218319000 Free: 1603072588 lsmpi_io Pool Total: 6295088 Used: 6294116 Free: 972 PID TTY Allocated Freed Holding Getbufs Retbufs Process 0 0 174405308 8586260 134742552 811 137870 *Init* 0 0 65688 393404 152 0 0 *Sched* 0 0 21603272 48285960 274932 3 1 *Dead* 0 0 0 0 406304 0 0 *MallocLite* 1 0 431576 0 448716 0 0 Chunk Manager 2 0 236 236 11140 0 0 Load Meter 3 0 2785880 2782996 32092 0 0 Exec 4 0 0 0 17140 0 0 Retransmission o 5 0 34360 0 17140 0 0 IPC ISSU Dispatc 6 0 3336 236 20240 0 0 Check heaps 7 0 32780 32780 17140 45 0 Pool Manager 8 0 236 236 17140 0 0 Timers 9 0 206550924 206496084 71980 9326586 9326586 ARP Input 10 0 24356 24356 17140 111 111 ARP Background 11 0 236 236 17140 0 0 ATM Idle Timer 12 0 0 0 17140 0 0 ATM ASYNC PROC 13 0 0 0 17140 0 0 AAA_SERVER_DEADT 14 0 0 0 29140 0 0 Policy Manager 15 0 59092 692 74972 172 172 Entity MIB API
Check Memory Usage on IOS XE
In order to see current system memory usage on Cisco IOS XE, use the show platform software status control-processor brief command.
Router#show platform software status control-processor brief Load Average Slot Status 1-Min 5-Min 15-Min RP0 Healthy 0.20 0.23 0.19 RP1 Healthy 0.19 0.19 0.12 ESP0 Healthy 0.65 0.54 0.47 SIP1 Healthy 0.17 0.07 0.01 SIP2 Healthy 0.02 0.06 0.01 Memory (kB) Slot Status Total Used (Pct) Free (Pct) Committed (Pct) RP0 Healthy 3919872 2710788 (65%) 1209084 (29%) 2327484 (56%) RP1 Healthy 3919872 2377136 (57%) 1542736 (37%) 2320964 (56%) ESP0 Healthy 2030444 1112344 (53%) 918100 (43%) 3409068 (162%) SIP1 Healthy 484452 293408 (55%) 191044 (36%) 244180 (46%) SIP2 Healthy 484452 293408 (55%) 191044 (36%) 244020 (46%) CPU Utilization Slot CPU User System Nice Idle IRQ SIRQ Iowait RP0 0 10.91 1.88 0.00 86.67 0.38 0.13 0.00 RP1 0 8.06 1.22 0.00 90.11 0.00 0.03 0.55 ESP0 0 5.78 3.61 0.00 90.51 0.02 0.05 0.00 SIP1 0 4.32 0.45 0.00 95.20 0.00 0.01 0.00 SIP2 0 3.95 0.44 0.00 95.57 0.00 0.01 0.00
In order to display memory usage for each process running on Cisco IOS XE, use monitor platform software process {fp|rp} {active|standby}. After the screen appears, you can type “shift + M” in order to sort displayed processes with memory usage.
RES indicates the non-swapped physical memory a process uses and SHR indicates the amount of shared memory used by a process. RES + SHR is the total amount of a process, and %MEM indicates the currently used share of available physical memory for the processes.
Router#monitor platform software process rp active top - 05:18:46 up 14 days, 17:33, 0 users, load average: 0.00, 0.01, 0.00 Tasks: 119 total, 1 running, 118 sleeping, 0 stopped, 0 zombie Cpu(s): 0.4% us, 0.4% sy, 0.0% ni, 99.1% id, 0.0% wa, 0.0% hi, 0.0% si Mem: 3714760k total, 1454344k used, 2260416k free, 97952k buffers Swap: 0k total, 0k used, 0k free, 875376k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 17385 root 20 0 1874m 338m 75m S 0.2 9.3 65:59.18 ppc_linux_iosd- 18098 root 20 0 71880 59m 6324 S 0.2 1.6 10:48.84 smand 16521 root 20 0 87868 51m 47m S 0.0 1.4 0:02.80 fman_rp 16903 root 20 0 27788 16m 14m S 0.0 0.5 15:41.61 imand 15957 root 20 0 24776 9696 6880 S 0.2 0.3 12:49.67 cmand 17697 root 20 0 19504 6160 4544 S 0.0 0.2 0:00.95 psd 16316 root 20 0 18232 5972 3736 S 0.0 0.2 12:43.32 emd 16732 root 20 0 16184 5556 3900 S 0.4 0.1 21:22.61 hman 17237 root 20 0 15892 5456 3088 S 0.0 0.1 0:00.99 plogd 15166 root 20 0 4056 2396 1248 S 0.0 0.1 0:00.72 pvp.sh 16937 root 9 -11 3992 2308 1232 S 0.0 0.1 0:00.13 pman.sh 15559 root 9 -11 3992 2304 1228 S 0.0 0.1 0:00.13 pman.sh 17978 root 9 -11 3992 2304 1228 S 0.0 0.1 0:00.13 pman.sh
In case this message appears when you issue the monitor platform software process command on the console, you need to set a terminal type with the terminal terminal-type command in order to appropriate one, such as VT100.
Router#monitor platform software process rp active
Terminal type 'network' unsupported for command
Change the terminal type with the 'terminal terminal-type' command.
Router#terminal terminal-type VT100
Check Memory Usage on QFP
In order to display information about memory usage of QFP, use the show platform hardware qfp active infrastructure exmem statistics command. Exmem contains IRAM, DRAM, SRAM and BQS related memory.
Router#show platform hardware qfp active infrastructure exmem statistics QFP exmem statistics Type: Name: IRAM, CPP: 0 Total: 134217728 InUse: 5372928 Free: 127926272 Free protected: 918528 Free unprotected: 0 Lowest free water mark: 128844800 Largest free block: 99505152 Type: Name: DRAM, CPP: 0 Total: 402653184 InUse: 124705792 Free: 275775488 Free protected: 1041408 Free unprotected: 1130496 Lowest free water mark: 275587072 Largest free block: 273415168 <snip>
In order to display memory usage for each user, add user options, as shown.
Router#show platform hardware qfp active infrastructure exmem statistics user Type: Name: IRAM, CPP: 0 Allocations Bytes-Alloc Bytes-Total User-Name ------------------------------------------------------------------------------- 1 115200 115712 CPP_FIA Type: Name: DRAM, CPP: 0 Allocations Bytes-Alloc Bytes-Total User-Name ------------------------------------------------------------------------------- 4 1248 4096 P/I 22 11567884 11585536 SBC 9 270600 276480 CEF 1 1138256 1138688 QM RM 3 528 3072 CFM 4 262144 262144 Qm 16 34 8405116 8436736 ING_EGR_UIDB 1 655360 655360 ING EGR INPUT CHUNK_Config_0 <snip>
In order to display TCAM usage of QFP, use the show platform hardware qfp active tcam resource-manager usage command.
Router#show platform hardware qfp active tcam resource-manager usage QFP TCAM Usage Information 80 Bit Region Information -------------------------- Name : Leaf Region #0 Number of cells per entry : 1 Current 80 bit entries used : 0 Current used cell entries : 0 Current free cell entries : 0 : : Total TCAM Cell Usage Information ---------------------------------- Name : TCAM #0 on CPP #0 Total number of regions : 3 Total tcam used cell entries : 0 Total tcam free cell entries : 131072 Threshold status : below critical limit
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Related Information
- Troubleshoot Cisco ASR 1000 Series Aggregation Services Routers Crashes
- Cisco ASR 1000 Series Aggregation Services Routers Support Page
- Technical Support & Documentation - Cisco Systems
| Updated: Aug 23, 2009 | Document ID: 110739 |