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| author | Felix Fietkau <nbd@nbd.name> | 2016-08-01 14:52:13 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2016-08-01 14:53:27 +0200 |
| commit | 5c9cc7b7f8920944a413644e1c2ea23bfe655bcb (patch) | |
| tree | c5da77de97d3c6e1b01d002621b9db916cae8b25 | |
| parent | df3a2ca1a9154361167e0e30745ca7954bf13b6f (diff) | |
| download | mtk-20170518-5c9cc7b7f8920944a413644e1c2ea23bfe655bcb.zip mtk-20170518-5c9cc7b7f8920944a413644e1c2ea23bfe655bcb.tar.gz mtk-20170518-5c9cc7b7f8920944a413644e1c2ea23bfe655bcb.tar.bz2 | |
base-files: increase vm.min_free_kbytes
Network drivers typically allocate memory in atomic context. For that to
be reliable, there needs to be enough free memory. Set the value
heuristically based on the total amount of system RAM.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
| -rwxr-xr-x | package/base-files/files/etc/init.d/sysctl | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/package/base-files/files/etc/init.d/sysctl b/package/base-files/files/etc/init.d/sysctl index 2dfbaf7..a0daec0 100755 --- a/package/base-files/files/etc/init.d/sysctl +++ b/package/base-files/files/etc/init.d/sysctl @@ -2,7 +2,23 @@ # Copyright (C) 2006 OpenWrt.org START=11 + +set_vm_min_free() { + mem="$(grep MemTotal /proc/meminfo | awk '{print $2}')" + if [ "$mem" -gt 65536 ]; then # 128M + val=16384 + elif [ "$mem" -gt 32768 ]; then # 64M + val=8192 + elif [ "$mem" -gt 16384 ]; then # 32M + val=4096 + else + return + fi + sysctl -qw vm.min_free_kbytes="$val" +} + start() { + set_vm_min_free for CONF in /etc/sysctl.conf /etc/sysctl.d/*.conf; do [ -f "$CONF" ] && sysctl -p "$CONF" -e >&- done |