4530 memory is not enough, increase the swap cache partition

ice5221

My 4530 ran an ecshop mall, a discuz forum, and just added a remote thunderbolt in the past two days.
The problem of CPU resource shortage is good to say, and it has been solved in a post. See:https://www.right.com.cn/forum/thread-133045-1-1.html
There is no good way to solve the problem of insufficient memory, and the only way to solve it is to add a swap partition.

1. <blockquote>root@OpenWrt:~# free

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free command, we see. By default, there is no swap partition.
So now let's add a swap partition!

1. <blockquote>root@OpenWrt:~# dd if=/dev/sda1 of=/root/swap bs=1024 count=1024000

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The landlord uses an 80G notebook hard disk with a 4530 plus IDE interface, so use the above command to add a 1024M swap partition.
Next, we're going to set up a swap file

1. root@OpenWrt:~# mkswap /root/swap
   
2. Setting up swapspace version 1, size = 1023996 KiB
   
3. no label, UUID=8975a384-8114-4e02-83b7-35c05a1a3791
   

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Finally, let's enable this swap
Let him take effect!

1. root@OpenWrt:~# swapon /root/swap
   

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See how it turns out。。。。。。

1. root@OpenWrt:~# free -m
   
2.                                 total           used                free        shared       buffers
   
3. Mem:                      126804        124600          2204             0           17892
   
4. -/+ buffers:             106708         20096
   
5. Swap:                     1023996             0          1023996
   

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See, we have space now!

But whether it works or not, we'll have to wait a few minutes to see.

1. root@OpenWrt:~# free
   
2.                        total              used             free           shared       buffers
   
3. Mem:             126804        123696          3108             0            5332
   
4. -/+ buffers:    118364          8440
   
5. Swap:            1023996           464       1023532
   

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It's already in effect. I run it for a few days and then come back to supplement the usage.



After actual testing, there is very little use of swap partitions, so

1. sysctl -w vm.swappiness=90

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Use this command to increase the usage of the swap partition.

tvrohd

Waiting for the tutorial...

ice5221

tvrohd on 2013-11-24 10:39
Waiting for the tutorial...

It's done.

tvrohd

Is the same command for portable hard drives?

ice5221

tvrohd Posted on 2013-11-24 10:57
Is the same command for portable hard drives?

I'm a portable hard drive

maxjove

See if it works

Pry about

SEE HOW SWAP SETS UP REST

ice5221

qiu_jianhui 2013-11-24 11:46
Is this also the case with USB flash drives???

It's all pretty much the same.

The number has been changed

Hidden stickers are not recommended.

frankmm

It's all going to be hidden......

frankmm

It's useless, just look at how much you use

ice5221

frankmm 2013-11-24 12:16
It's all going to be hidden......

If it is not hidden, it will soon be buried.

ice5221

frankmm 2013-11-24 12:17
It's useless, just look at how much you use

I also wonder why I use so little.

frankmm

ice5221 2013-11-24 12:20
I also wonder why I use so little.

OP doesn't support swap well. I think that as long as the running program does not quit because of insufficient memory, then there is no need to add memory. However, the things you run do take up more memory

housecall

While thinking, thank you for sharing