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Yonghao_Gao
Nickel

Physical memory is high

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Dear all

      My CP23500 is 16G  memory and traffic is low.

but memory is high,as follow:

This is why?Thanks!

1 Solution

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Re: Physical memory is high

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Second that, there is nothing wrong here. We rely on OS "mem" command to show physical memory utilization.  That command with 2.6 kernel it is known to report more than FW really needs as being used. That is normal and should not be causing any alarm unless you start swapping.

10 Replies

Re: Physical memory is high

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Hi,

post commands from expert mode:

free -mt

enabled_blades

fw ctl multik stat

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Yonghao_Gao
Nickel

Re: Physical memory is high

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Hi 

as follow:

[Expert@FW001:0]# free -mt
total used free shared buffers cached
Mem: 15798 14666 1131 0 394 1577
-/+ buffers/cache: 12695 3103
Swap: 18449 0 18449
Total: 34247 14667 19580


[Expert@FW001:0]# enabled_blades
fw urlf av appi ips anti_bot mon


[Expert@FW001:0]# fw ctl multik stat
ID | Active | CPU | Connections | Peak
----------------------------------------------
0 | Yes | 39 | 54 | 6345
1 | Yes | 19 | 62 | 5343
2 | Yes | 38 | 58 | 6763
3 | Yes | 18 | 47 | 5993
4 | Yes | 37 | 61 | 6299
5 | Yes | 17 | 50 | 6063
6 | Yes | 36 | 50 | 5943
7 | Yes | 16 | 61 | 6050
8 | Yes | 35 | 41 | 5736
9 | Yes | 15 | 49 | 6165
10 | Yes | 34 | 43 | 6287
11 | Yes | 14 | 56 | 6063
12 | Yes | 33 | 64 | 5961
13 | Yes | 13 | 57 | 5984
14 | Yes | 32 | 52 | 6067
15 | Yes | 12 | 56 | 5965
16 | Yes | 31 | 55 | 6024
17 | Yes | 11 | 54 | 5940
18 | Yes | 30 | 55 | 5516
19 | Yes | 10 | 45 | 6514
20 | Yes | 29 | 54 | 6390
21 | Yes | 9 | 53 | 6043
22 | Yes | 28 | 45 | 6093
23 | Yes | 8 | 51 | 6032
24 | Yes | 27 | 43 | 5962
25 | Yes | 7 | 46 | 6119
26 | Yes | 26 | 36 | 5992
27 | Yes | 6 | 46 | 5822
28 | Yes | 25 | 55 | 6363
29 | Yes | 5 | 45 | 5815
30 | Yes | 24 | 55 | 6337
31 | Yes | 4 | 58 | 6125
32 | Yes | 23 | 62 | 6111
33 | Yes | 3 | 50 | 6125
34 | Yes | 22 | 58 | 6083
35 | Yes | 2 | 61 | 5984

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Re: Physical memory is high

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I assume there is nothing wrong, you are using a lot of NG blades which consumes memory. The real value of memory consumption without cache is 12695, 1577 is cached and can be freed any time.

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Re: Physical memory is high

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Second that, there is nothing wrong here. We rely on OS "mem" command to show physical memory utilization.  That command with 2.6 kernel it is known to report more than FW really needs as being used. That is normal and should not be causing any alarm unless you start swapping.

Re: Physical memory is high

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Agree with Val, as long as second number on the Swap line is 0 everything is running completely within RAM and there is no need for paging/swapping, so your system is running optimally from a memory perspective.

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Yonghao_Gao
Nickel

Re: Physical memory is high

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I have another firewall,still 23500(R80.10),their functions and policy are the same,and this fw traffic is higher,as follow:

But its memory is very low,as follow:

[Expert@FW002:0]# free -mt
total used free shared buffers cached
Mem: 15798 11985 3812 0 441 3278
-/+ buffers/cache: 8266 7531
Swap: 18449 0 18449
Total: 34247 11985 22261
[Expert@FW002:0]# enabled_blades
fw urlf av appi ips anti_bot mon
[Expert@FW002:0]#
[Expert@FW002:0]# fw ctl multik stat
ID | Active | CPU | Connections | Peak
----------------------------------------------
0 | Yes | 39 | 919 | 2617
1 | Yes | 19 | 957 | 2642
2 | Yes | 38 | 953 | 2706
3 | Yes | 18 | 936 | 2553
4 | Yes | 37 | 962 | 2692
5 | Yes | 17 | 917 | 2604
6 | Yes | 36 | 970 | 2635
7 | Yes | 16 | 972 | 2617
8 | Yes | 35 | 978 | 2663
9 | Yes | 15 | 993 | 2596
10 | Yes | 34 | 970 | 2646
11 | Yes | 14 | 980 | 2643
12 | Yes | 33 | 952 | 2640
13 | Yes | 13 | 1018 | 2731
14 | Yes | 32 | 928 | 2624
15 | Yes | 12 | 997 | 2647
16 | Yes | 31 | 962 | 2593
17 | Yes | 11 | 989 | 2609
18 | Yes | 30 | 922 | 2512
19 | Yes | 10 | 884 | 2576
20 | Yes | 29 | 1025 | 2652
21 | Yes | 9 | 1027 | 2754
22 | Yes | 28 | 1071 | 2733
23 | Yes | 8 | 987 | 2633
24 | Yes | 27 | 927 | 2714
25 | Yes | 7 | 1015 | 2651
26 | Yes | 26 | 1017 | 2619
27 | Yes | 6 | 1005 | 2652
28 | Yes | 25 | 1017 | 2651
29 | Yes | 5 | 899 | 2535
30 | Yes | 24 | 1063 | 2791
31 | Yes | 4 | 1043 | 2670
32 | Yes | 23 | 979 | 2751
33 | Yes | 3 | 947 | 2766
34 | Yes | 22 | 988 | 2657
35 | Yes | 2 | 931 | 2679

So,I'm a little confused.

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Re: Physical memory is high

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 As said, you can ignore mem output and free memory at all, unless start swapping. 

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Yonghao_Gao
Nickel

Re: Physical memory is high

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I got it,thanks all!

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Alex_Gilis
Copper

Re: Physical memory is high

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Do you have the latest hotfix installed?

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Yonghao_Gao
Nickel

Re: Physical memory is high

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No,hotfix is take_56

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