IO Memory

[bluesea2010]

Hi,

I am getting significant io memory nearly 50 % , What is IO memory here and do I need to upgrade to a higher version 

If yes what is the version 

Version 15.0(1r)M15, RELEASE SOFTWARE (fc1)'

Image  is  flash0:c2900-universalk9-mz.SPA.151-4.M3.bin"

sh processes memory sorted
Processor Pool Total: 316197600 Used: 38923604 Free: 277273996
I/O Pool Total: 46137344 Used: 21322112 Free: 24815232

PID TTY Allocated Freed Holding Getbufs Retbufs Process
0 0 190911508 130732976 52825072 0 0 *Init*
0 0 4266728604 2441175780 3431320 11134142 0 *Dead*
0 0 0 0 1903464 0 0 *MallocLite*
1 0 65825672 65590900 501988 0 0 Chunk Manager
270 0 1156432 102372 458884 13608 0 BGP Router
307 0 473152 2996 456068 0 0 VLAN Manager
88 0 300752 3888 310360 0 0 EEM ED ND
299 0 273628 0 283860 100548 0 EEM ED Syslog
232 0 261292 528 269996 0 0 Crypto WUI
271 0 254136 0 264368 0 0 QOS_MODULE_MAIN
309 0 237428 0 244660 0 0 EEM Server
218 0 218480 632 215888 0 0 Crypto HW Proc
94 0 201560 0 206932 780 0 BGP I/O
98 0 202588 392 184196 0 0 USB Startup
91 0 160460 240 167452 0 0 VNM DSPRM MAIN
268 388 6407664 6295480 124568 6804 0 SSH Process
275 0 299480 76 119600 67332 0 Crypto IKEv2
7 0 310971688 355911292 111308 271464556 285120208 Pool Manager
351 0 98408 6920 105684 0 0 BGP Task
4 0 65588 0 90820 0 0 EDDRI_MAIN
--More-- PID TTY Allocated Freed Holding Getbufs Retbufs Process
310 0 92072 42724 87764 0 0 Call Home proces
53 0 66376 0 73608 0 0 IF-MGR control p
215 0 66400 240 73392 0 0 HTTP Process
284 0 43288 3452 65068 0 0 Crypto ACL
130 0 49384 0 62616 0 0 IPAM Manager
187 0 944 0 62176 0 0 COPS
269 0 944 0 62176 0 0 http client proc
133 0 49384 0 56616 0 0 IP ARP Retry Age
120 0 49384 0 56616 0 0 ACCT Periodic Pr
233 0 27292 240 52284 0 0 STUN_APP
3 0 20932 736 46096 0 0 LICENSE AGENT
250 0 28248 0 41480 0 0 CCVPM_HTSP
274 0 33904 240 40896 0 0 Dialog Manager
31 0 63032 29488 40776 0 0 ARP Input
171 0 83736 53632 40336 0 0 IP Connected Rou
179 0 2240574812 2154449396 38376 829696 0 HTTP CORE
169 0 220204 178532 37900 0 0 IP RIB Update
282 0 96224 4464 37140 0 0 IPSEC key engine
213 0 16824 240 29816 0 0 IPS Auto Update
347 0 542491076 3231694360 29532 2268 0 SNMP ENGINE
114 0 3168 0 28400 0 0 SMI Director DB
141 2 3456 1884 26700 0 0 TTY Daemon
208 67 3488 1952 26664 0 0 TTY Daemon
--More-- PID TTY Allocated Freed Holding Getbufs Retbufs Process
132 0 75604 59636 26524 0 0 IP ARP Adjacency
176 0 85324 240 26488 0 0 SCTP Main Proces
205 0 1280 240 26272 0 0 gk process
234 0 944 0 26176 0 0 STUN_TEST
236 0 944 0 26176 0 0 FW_TEST_TRP
204 0 1044 240 26036 0 0 Border Element p
260 0 948 240 25940 0 0 CTI Front End Pr
116 0 704 0 25936 0 0 SMI Backup Proce
272 0 284 0 25516 0 0 RPMS_PROC_MAIN
336 0 240 0 25472 0 0 tHUB
87 0 0 0 25232 0 0 RF_INTERDEV_SCTP
28 0 0 0 25232 0 0 Crash writer
99 0 0 0 25232 0 0 CF_INTERDEV_SCTP
273 0 0 0 25232 0 0 VoIP AAA
118 0 16832 240 23824 0 0 AAA Server
155 0 14720 13764 21324 0 0 CEF background p
158 0 21936 1804 20208 0 0 CEF: IPv4 proces
328 0 9616 0 19848 0 0 EEM ED Nf
217 0 12580 240 19572 0 0 CIFS Proxy Proce
280 0 5472 880 18464 0 0 Crypto IKMP
178 0 3554955692 4040459532 18456 2340 0 TCP Protocols
134 0 1500206064 2285338052 18332 467480 0 IP Input
212 0 5052 0 18284 0 0 IPS Process
--More-- PID TTY Allocated Freed Holding Getbufs Retbufs Process
54 0 11096 0 17284 0 0 IF-MGR event pro
311 0 11508 1744 16996 0 0 EEM Policy Direc
301 0 6388 0 16620 0 0 EEM ED Resource
344 0 8496 0 15588 0 0 SSH Event handle
259 0 8244 0 15476 0 0 Skinny HW confer
242 0 3884 2320 15476 0 0 Crypto CA
49 0 2848688 54200 15044 448500 0 Net Background
319 0 4748 80 14900 0 0 EEM ED RF
321 0 4564 0 14796 0 0 EEM ED SNMP Obje
320 0 4564 0 14796 0 0 EEM ED SNMP
298 0 4564 0 14796 0 0 EEM ED Routing
313 0 4564 0 14796 0 0 EEM ED CLI
322 0 4564 0 14796 0 0 EEM ED SNMP Noti
316 0 4564 0 14796 0 0 EEM ED IOSWD
315 0 4564 0 14796 0 0 EEM ED Interface
317 0 4564 0 14796 0 0 EEM ED None
300 0 4564 0 14796 0 0 EEM ED Track
318 0 4564 0 14796 0 0 EEM ED OIR
314 0 4564 0 14796 0 0 EEM ED Counter
330 0 4564 0 14796 0 0 EEM ED RPC
331 0 4564 0 14796 0 0 EEM ED Ipsla
89 0 4564 0 14796 0 0 EEM ED Identity
323 0 4564 0 14796 0 0 EEM ED Timer
--More-- PID TTY Allocated Freed Holding Getbufs Retbufs Process
327 0 4564 0 14796 0 0 EM ED GOLD
324 0 4564 0 14796 0 0 EEM ED Test
325 0 4564 0 14796 0 0 EEM ED Config
326 0 4564 0 14796 0 0 EEM ED Env
337 0 1744 240 14736 0 0 MRIB Process
345 0 1305426640 1300913576 14404 0 0 IP SNMP
348 0 1212 240 14236 0 0 IP SNMPV6
346 0 2684873280 157508 14072 0 0 PDU DISPATCHER
247 0 480 240 13504 0 0 MMON MENG
146 0 144268 240 13472 23400 0 Spanning Tree
246 0 480 240 13472 0 0 MMON PROCESS
174 0 240 0 13472 0 0 Collection proce
125 0 240 0 13472 0 0 CEF switching ba
156 0 224 0 13456 0 0 fib_fib_bfd_sb e
191 0 224 0 13456 0 0 MFIB Master back
189 0 1286109000 1283938520 13456 352820 0 ADJ resolve proc
350 0 9083932 9026508 13264 23436 0 SNMP Traps
349 0 0 0 13264 0 0 SNMP ConfCopyPro
104 0 240 240 13232 0 0 Ethernet Timer C
105 0 240 240 13232 0 0 Ethernet Msec Ti
74 0 240 240 13232 0 0 SM Installer
279 0 6564 1172 13232 2268 0 Crypto IKE Dispa
329 0 103084852 103084852 13232 0 0 Syslog
--More-- PID TTY Allocated Freed Holding Getbufs Retbufs Process
103 0 240 240 13232 0 0 Ethernet CFM
102 0 240 240 13232 0 0 SM Installer
297 0 0 0 13232 0 0 Test AAA Client
45 0 240 240 13232 0 0 Dialer event
127 0 240 240 13232 0 0 ATM OAM Input
47 0 240 240 13232 0 0 XML Proxy Client
128 0 240 240 13232 0 0 ATM OAM TIMER
50 0 1688 1688 13232 0 0 IDB Work
140 0 240 240 13232 0 0 PPP IP Route
154 0 240 240 13232 0 0 KRB5 AAA
198 0 240 240 13232 0 0 X.25 Background
168 0 0 0 13232 0 0 Routing Topology
201 0 0 0 13232 0 0 VPDN call manage
77 0 0 0 13232 0 0 sal_dpc_process
123 0 240 240 13232 0 0 Ethernet LMI
147 0 240 240 13232 0 0 SSM connection m
51 0 240 240 13232 0 0 Logger
244 0 0 0 13232 0 0 encrypt proc
131 0 240 240 13232 0 0 IPAM Events
142 0 0 0 13232 0 0 SSS Manager
143 0 0 0 13232 0 0 SSS Policy Manag
177 0 3107824 2685110812 13232 506928 11180 TCP Timer
--More-- PID TTY Allocated Freed Holding Getbufs Retbufs Process
243 0 0 0 13232 0 0 Crypto PKI-CRL
37 0 0 0 13232 0 0 Policy Manager
58 0 0 0 13232 0 0 Crypto PKI-HA
39 0 5964 80 13116 0 0 Entity MIB API
0 0 12300 142181160 12300 0 0 *Sched*
84 0 5292 240 12284 0 0 ehwic_eswge Proc
334 0 4660 0 11892 0 0 trunk conditioni
67 0 29496 22424 11376 0 0 Per-Second Jobs
170 0 4532 10292 11016 0 0 IP Background
192 0 480 240 10472 0 0 Multicast Offloa
6 0 3340 240 10332 0 0 Check heaps
152 0 240 240 10232 0 0 EAPoUDP Process
195 0 0 0 10232 0 0 IP IRDP
194 0 240 240 10232 0 0 static
292 0 0 0 10232 0 0 Licensing MIB pr
289 0 0 0 10232 0 0 Crypto Device Up
124 0 240 240 10232 0 0 Ethernet OAM Pro
101 0 0 0 10232 0 0 PSE2 UART period
153 0 240 240 10232 0 0 IP Host Track Pr
113 0 3208 240 10200 0 0 call_home_les_oi
30 0 620 0 10096 0 0 BGP Scheduler
221 0 0 0 10096 0 0 BGP Scanner
216 0 2280 240 9272 0 0 CIFS API Process
--More-- PID TTY Allocated Freed Holding Getbufs Retbufs Process
338 0 0 0 9232 0 0 Key Proc
248 0 9772 452 9060 0 0 FLEX DSPRM MAIN
22 0 1704 0 8936 0 0 IPC Seat Manager
121 0 1840 240 8832 0 0 CDP Protocol
230 0 413900640 413783988 8472 9288 0 NIST rng proc
245 0 473676 444185196 8188 0 0 crypto sw pk pro
211 0 1184 240 8176 0 0 URL filter proc
253 0 932 0 8164 0 0 VPM_CONN_CHK_BAC
109 0 1104 240 8096 0 0 DTP Protocol
220 0 1048 240 8040 0 0 CRM_CALL_UPDATE_
229 0 1044 240 8036 0 0 TPLUS
231 0 1004 240 7996 0 0 LDAP process
164 0 740 160 7972 0 0 L2MM
254 0 436 0 7668 0 0 CCVPM_R2
62 0 8988 1440 7628 0 0 rf task
29 0 380 0 7612 0 0 Exception contro
157 0 324 0 7556 0 0 IPC UDP Input
304 0 552572748 551855280 7556 257040 0 Syslog Traps
161 0 480 240 7472 0 0 Dot1x Supplicant
162 0 480 240 7472 0 0 Dot1x Supplicant
163 0 480 240 7472 0 0 Dot1x Supplicant
159 0 224 0 7456 0 0 ADJ background
206 0 376 240 7368 0 0 SDEE Management
--More-- PID TTY Allocated Freed Holding Getbufs Retbufs Process
173 0 0 0 7316 0 0 Call Home Timer
207 0 240 240 7268 0 0 Inspect process
209 0 240 240 7264 0 0 FW DP Inspect pr
14 0 240 240 7256 0 0 Environmental mo
249 0 0 0 7252 0 0 FLEX DSP KEEPALI
182 0 240 240 7232 0 0 RUDPV1 Main Proc
183 0 0 0 7232 0 0 bsm_timers
184 0 0 0 7232 0 0 bsm_xmt_proc
181 0 0 0 7232 0 0 IUA Main Process
180 0 0 0 7232 0 0 AAA System Acct
172 0 0 0 7232 0 0 IP Traceroute
188 0 240 240 7232 0 0 Dialer Forwarder
166 0 0 0 7232 0 0 IGMPSN
190 0 240 240 7232 0 0 Flow Exporter Ti
165 0 0 0 7232 0 0 MRD
185 0 240 240 7232 0 0 PPP Compress Inp
186 0 240 240 7232 0 0 PPP Compress Res
151 0 0 0 7232 0 0 Auth-proxy AAA B
175 0 0 0 7232 0 0 SNMP Timers
196 0 0 0 7232 0 0 LAPB Process
160 0 0 0 7232 0 0 Socket Timers
149 0 0 0 7232 0 0 X.25 Encaps Mana
199 0 0 0 7232 0 0 MQC Flow Event B
--More-- PID TTY Allocated Freed Holding Getbufs Retbufs Process
200 0 0 0 7232 0 0 HQF Shaper Backg
148 0 0 0 7232 0 0 WAAS Process
202 0 240 240 7232 0 0 RLM groups Proce
203 0 240 240 7232 0 0 PPP NBF
145 0 0 0 7232 0 0 SSS Feature Time
144 0 0 0 7232 0 0 SSS Feature Mana
139 0 240 240 7232 0 0 PPP Bind
193 0 0 0 7232 0 0 RARP Input
138 0 240 240 7232 0 0 PPP SIP
150 0 0 0 7232 0 0 Authentication P
210 0 240 240 7232 0 0 CCE DP URLF cach
137 0 76184 240 7232 27216 0 MOP Protocols
136 0 240 240 7232 0 0 PIM register asy
197 0 0 0 7232 0 0 PAD InCall
214 0 0 0 7232 0 0 Select Timers
129 0 240 240 7232 0 0 IPAM/ODAP Events
135 0 0 0 7232 0 0 ICMP event handl
122 0 240 240 7232 0 0 AAA Dictionary R
119 0 0 0 7232 0 0 AAA ACCT Proc
219 0 0 0 7232 0 0 IPv6 Inspect Tim
117 0 0 0 7232 0 0 IPv6 ping proces
115 0 0 0 7232 0 0 SMI CDP Update H
222 0 240 240 7232 0 0 AAA Cached Serve
--More-- PID TTY Allocated Freed Holding Getbufs Retbufs Process
223 0 240 240 7232 0 0 ENABLE AAA
224 0 0 0 7232 0 0 EM Background Pr
225 0 0 0 7232 0 0 IDMGR CORE
226 0 0 0 7232 0 0 Key chain liveke
227 0 240 240 7232 0 0 LINE AAA
228 0 84720756 84720756 7232 0 0 LOCAL AAA
112 0 240 240 7232 0 0 EtherChnl
111 0 240 240 7232 0 0 PI MATM Aging Pr
110 0 0 0 7232 0 0 SFF8472
108 0 0 0 7232 0 0 EAP Framework
107 0 0 0 7232 0 0 MAB Framework
106 0 240 240 7232 0 0 Dot1x Mgr Proces
235 0 240 240 7232 0 0 VSP_MGR
100 0 240 240 7232 0 0 BPSM stat Proces
237 0 240 240 7232 0 0 Crypto Support
238 0 0 0 7232 0 0 EPM MAIN PROCESS
239 0 0 0 7232 0 0 IPSECv6 PS Proc
240 0 240 240 7232 0 0 CSDB Timer proce
241 0 0 0 7232 0 0 crypto engine pr
97 0 240 240 7232 0 0 Call Management
96 0 0 0 7232 0 0 IGMP Snooping Re
95 0 0 0 7232 0 0 IGMP Snooping Pr
93 0 240 240 7232 0 0 Ether-Switch RBC
--More-- PID TTY Allocated Freed Holding Getbufs Retbufs Process
92 0 7712 240 7232 0 0 FLEX DNLD MAIN
90 0 0 0 7232 0 0 VIDEO DSPRM MAIN
86 0 0 0 7232 0 0 RF_INTERDEV_DELA
264 0 240 240 7232 0 0 VOICE REG BG Pro
85 0 240 240 7232 0 0 Netclock Backgro
251 0 240 240 7232 0 0 VPM_MWI_BACKGROU
56 0 0 0 7232 0 0 cpf_msg_holdq_pr
83 0 199856 404 7232 0 0 DXMRVL
302 0 240 240 7232 0 0 RMON Recycle Pro
255 0 0 0 7232 0 0 IP TRUST Registe
256 0 0 0 7232 0 0 EPHONE MWI Refre
257 0 0 0 7232 0 0 FB/KS Log HouseK
258 0 240 240 7232 0 0 EPHONE MWI BG Pr
81 0 240 240 7232 0 0 ESWILPPM
80 0 240 240 7232 0 0 Eswilp Storm Con
261 0 240 240 7232 0 0 CTI Call Control
262 0 240 240 7232 0 0 CTI Line Monitor
263 0 0 0 7232 0 0 CME CTI Device M
303 0 240 240 7232 0 0 RMON Deferred Se
265 0 240 240 7232 0 0 CME Extension Mo
266 0 0 0 7232 0 0 Presence Process
267 0 0 0 7232 0 0 DS0 PCM Capture
79 0 240 240 7232 0 0 ESWPPM
--More-- PID TTY Allocated Freed Holding Getbufs Retbufs Process
78 0 0 0 7232 0 0 ARL Table Manage
48 0 0 0 7232 0 0 Critical Bkgnd
43 0 8460 8536 7232 0 0 SMART
73 0 240 240 7232 0 0 Bryce I2C CMD Qu
72 0 240 240 7232 0 0 SM Monitor
71 0 0 0 7232 0 0 HC Counter Timer
70 0 0 3017048 7232 0 0 Transport Port A
276 0 0 0 7232 0 0 IKEv2 AAA handle
277 0 240 240 7232 0 0 CRYPTO MAP FREE
278 0 0 0 7232 0 0 Crypto INT
69 0 0 0 7232 0 0 Token Daemon
68 0 0 0 7232 0 0 AggMgr Process
281 0 0 0 7232 0 0 IPSEC manual key
66 0 63948 107088 7232 55816 0 Per-minute Jobs
283 0 0 0 7232 0 0 CRYPTO QoS proce
65 0 240 240 7232 0 0 Compute load avg
285 0 0 0 7232 0 0 Crypto PAS Proc
286 0 0 0 7232 0 0 GDOI GM Process
287 0 0 0 7232 0 0 UNICAST REKEY
288 0 0 0 7232 0 0 UNICAST REKEY AC
64 0 0 0 7232 0 0 Net Input
290 0 0 0 7232 0 0 Multi-ISA Event
291 0 0 0 7232 0 0 Multi-ISA Cleanu
--More-- PID TTY Allocated Freed Holding Getbufs Retbufs Process
63 0 0 0 7232 0 0 RF High Priority
293 0 240 240 7232 0 0 Control-plane ho
294 0 0 7896 7232 0 0 PM Callback
296 0 396545320 2022122264 7232 0 0 AAA SEND STOP EV
61 0 240 240 7232 0 0 TDM Management
60 0 0 0 7232 0 0 IPSEC HA Mgr
59 0 0 0 7232 0 0 IKE HA Mgr
57 0 0 0 7232 0 0 cpf_msg_rcvq_pro
41 0 240 240 7232 0 0 Serial Backgroun
21 0 0 0 7232 0 0 IPC Process leve
20 0 0 0 7232 0 0 IPC Deferred Por
353 0 0 0 7232 0 0 TCP Listener
305 0 0 0 7232 0 0 Crypto cTCP proc
52 0 240 4456 7232 0 0 TTY Background
32 0 1283076356 1283071568 7232 780 0 ARP Background
5 0 0 0 7232 0 0 RO Notify Timers
46 0 0 0 7232 0 0 SERIAL A'detect
44 0 240 240 7232 0 0 GraphIt
8 0 0 0 7232 0 0 DiscardQ Backgro
9 0 240 240 7232 0 0 Timers
26 0 0 0 7232 0 0 IPC Keep Alive M
40 0 896 896 7232 0 0 PrstVbl
38 0 240 240 7232 0 0 DDR Timers
--More-- PID TTY Allocated Freed Holding Getbufs Retbufs Process
36 0 0 0 7232 0 0 AAA_SERVER_DEADT
35 0 0 0 7232 0 0 CEF MIB API
34 0 0 0 7232 0 0 ATM ASYNC PROC
33 0 240 240 7232 0 0 ATM Idle Timer
23 0 0 0 7232 0 0 IPC Check Queue
27 0 0 0 7232 0 0 IPC Loadometer
18 0 0 0 7232 0 0 IPC Zone Manager
25 0 0 0 7232 0 0 IPC Seat TX Cont
24 0 0 0 7232 0 0 IPC Seat RX Cont
332 0 0 0 7232 0 0 IP SLAs Ethernet
11 0 0 0 7232 0 0 License Client N
12 0 0 0 7232 0 0 Image License br
19 0 0 0 7232 0 0 IPC Periodic Tim
333 0 0 0 7232 0 0 trunk conditioni
335 0 0 0 7232 0 0 VDC process
16 0 0 0 7232 0 0 IPC Dynamic Cach
17 0 0 0 7232 0 0 IPC Session Serv
13 0 3553327060 3553328268 7232 0 0 Licensing Auto U
15 0 0 0 7232 0 0 IPC Event Notifi
308 0 0 0 7152 0 0 cpf_process_tpQ
252 0 0 0 7096 0 0 BGP Event
126 0 248 0 4480 0 0 ADJ NSF process
340 0 240 0 4472 0 0 Async write proc
--More-- PID TTY Allocated Freed Holding Getbufs Retbufs Process
341 0 240 0 4472 0 0 Async write proc
342 0 240 0 4472 0 0 Async write proc
339 0 240 0 4472 0 0 Async write proc
167 0 240 240 4272 0 0 L2X Switching Ev
343 0 0 0 4232 0 0 DFS flush period
82 0 240 240 4232 0 0 Eswilp Storm Con
10 0 0 0 4232 0 0 WATCH_AFS
42 0 0 0 4232 0 0 RMI RM Notify Wa
75 0 0 0 4232 0 0 dev_device_inser
76 0 0 0 4232 0 0 dev_device_remov
2 0 240 240 4232 0 0 Load Meter
55 0 0 0 4232 0 0 Inode Table Dest
66539028 Total

Thanks

[Giuseppe Larosa]

Hello @bluesea2010 ,

the I/O memory is a portion of the router RAM memory that is dedicated to the interfaces: it is used to handle the input and ouput packets in buffers and for outgoing packets they can be held in SW queues before sending.

The I/O memory is allocated at system boot and it is usually near 3-5 % of total router memory.

>> I/O Pool Total: 46137344 Used: 21322112 Free: 24815232

Do you see any issues in your router in addition to this memory usage ?

Hope to help

Giuseppe