Hi folks. I'm running CFMX 6.1 on a dual xeon, RH. It has 4GB of physical
memory.
Our CF App does a lot of caching, so we fully expect the cf app to use a lot of
memory.
However, it appears that the server starts to thrash away into virtual memory
after running for a while. This appears on the server as the queues building
up on cfstat (with no queries waiting), and this on vmstat:
r b w swpd free buff cache si so bi bo in cs us sy id
8 21 0 481436 26212 68140 2349376 0 44 0 3176 2262 4653 2 1 97
4 0 0 481444 25132 68124 2349664 0 8 380 692 1610 9680 69 17 13
0 0 0 481444 24128 68124 2349720 0 0 4 2668 1909 3227 40 7 53
0 0 1 481452 22304 67992 2349900 0 8 8 2720 2434 4531 12 5 83
1 0 0 481452 21760 67992 2350000 0 0 68 228 2016 4389 15 6 79
2 1 1 481460 21516 67920 2350128 0 8 16 612 1614 4612 55 7 38
However, "top" displays memory usage as following:
21:25:44 up 105 days, 14:56, 2 users, load average: 3.25, 7.57, 8.35
429 processes: 425 sleeping, 4 running, 0 zombie, 0 stopped
CPU0 states: 19.0% user 5.3% system 0.0% nice 0.0% iowait 75.0% idle
CPU1 states: 19.4% user 2.3% system 0.0% nice 0.0% iowait 77.1% idle
CPU2 states: 14.2% user 9.3% system 0.0% nice 0.0% iowait 75.4% idle
CPU3 states: 11.3% user 3.4% system 0.0% nice 0.0% iowait 84.1% idle
Mem: 4068096k av, 4051508k used, 16588k free, 0k shrd, 72264k buff
2677740k actv, 451232k in_d, 88360k in_c
Swap: 2048276k av, 477720k used, 1570556k free 2349208k cached
PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND
23453 root 15 0 4056 4056 1964 S 99.9 0.0 0:42 2 httpd
27347 theuser 25 0 861M 824M 3276 S 44.6 20.7 223:51 0 cfusion
29558 mysql 15 0 358M 334M 1328 S 10.1 8.4 213:22 3 mysqld
2408 root 15 0 448 448 384 R 5.4 0.0 0:28 2 vmstat
2702 theuser 16 0 1348 1348 800 R 2.1 0.0 0:01 3 top
595 root 15 0 476 340 232 S 0.1 0.0 6:28 3 sshd
So we've got:
mysql: 334MB
coldfusion: 824MB
That is well under 4GB. I see that linux in its infinite wisdom has gobbled
up all free memory and "cached" it for its own nefarious linux purposes (disk
stuff I suppose). And... it has allocated almost 500MB of virtual memory...
So I'm curious if I'm interpreting this right. Is there any chance coldfusion
is using more than 824 MB of memory? It's not 824MB/processor or something
weird is it? Or is mysql using more memory than advertised on top?
Would appreciate any commentary about the memory situation on this machine.
Thanks
Terry
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~|
Introducing the Fusion Authority Quarterly Update. 80 pages of hard-hitting,
up-to-date ColdFusion information by your peers, delivered to your door four
times a year.
http://www.fusionauthority.com/quarterly
Archive: http://www.houseoffusion.com/groups/CF-Linux/message.cfm/messageid:4201
Subscription: http://www.houseoffusion.com/groups/CF-Linux/subscribe.cfm
Unsubscribe:
http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.14
