什么应用都没有距，用free查看内存，只剩下25M，感觉捉襟见肘。
有没有方面能调整系统占用的内存？
free命令：
total used free shared buffers cached
Mem: 107104 81244 25860 76 3200 52968
-/+ buffers/cache: 25076 82028
Swap: 0 0 0ps命令:
PID USER COMMAND
1 root init
2 root [kthreadd]
3 root [rcu_gp]
4 root [rcu_par_gp]
7 root [kworker/u4:0-ev]
8 root [mm_percpu_wq]
9 root [ksoftirqd/0]
10 root [rcu_preempt]
11 root [migration/0]
12 root [cpuhp/0]
13 root [cpuhp/1]
14 root [migration/1]
15 root [ksoftirqd/1]
16 root [kworker/1:0-eve]
18 root [kdevtmpfs]
19 root [kworker/u4:1-ev]
21 root [rcu_tasks_kthre]
33 root [kworker/0:1-eve]
568 root [oom_reaper]
569 root [writeback]
603 root [kblockd]
744 root [ion_system_heap]
767 root [watchdogd]
862 root [cfg80211]
865 root [kswapd0]
971 root [vsync proc 0]
972 root [vsync proc 1]
1075 root [uas]
1118 root [kworker/0:2-rcu]
1141 root [rc0]
1164 root [irq/38-mmc2]
1169 root [irq/39-mmc0]
1213 root [ipv6_addrconf]
1221 root [krfcommd]
1224 root [printk]
1246 root [irq/163-3-003d]
1276 root [goodix_wq]
1289 root [mmc_complete]
1293 root [kworker/1:1H-kb]
1294 root [kworker/0:1H-kb]
1305 root [kworker/1:2H]
1306 root [jbd2/mmcblk0p5-]
1307 root [ext4-rsv-conver]
1313 root [kworker/0:2H]
1325 root /sbin/syslogd -n
1329 root /sbin/klogd -n
1347 root dbus-daemon --system
1371 root [irq/172-usb_id]
1376 root /usr/sbin/dropbear -R
1387 root /usr/sbin/telnetd -F
1393 root /usr/sbin/tftpd -c -l -s /var/lib/tftpboot
1439 root -sh
2465 root [kworker/1:1-eve]
2467 root [kworker/1:2-eve]
2468 root ps离线
#! /bin/bash
echo "Clean buff/cache start..."
free -h
cd /proc/sys/vm
echo 1 > drop_caches
echo 2 > drop_caches
echo 3 > drop_caches
echo "Clean buff/cache end..."
free -h
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试一下行不行？
请教您都运行啥了？ 很好奇内置的128MB日常够不够用？
据说又出了S4，内置256MB；
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#! /bin/bash
echo "Clean buff/cache start..."
free -h
cd /proc/sys/vm
echo 1 > drop_caches
echo 2 > drop_caches
echo 3 > drop_caches
echo "Clean buff/cache end..."
free -h
非常感谢，现在可以是这样，
total used free shared buffers cached
Mem: 107104 30992 76112 76 1220 5640
-/+ buffers/cache: 24132 82972
Swap: 0 0 0busybox的 free 命令输出格式和标准linux下的格式不太一样，把我搞晕了。
现在明白了，可用内存应该是free+cached 两者之和。
应用程序可以跑起来，我担心空闲内存太小会出现问题，现在看来应该没有问题。
最近编辑记录 zllfdd (2023-10-13 17:34:39)
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