> ini konfigurasi squid saya dan hasil dari perintah
> free
>
> root@MLB_server:~# free
> total used free shared
> buffers cached
> Mem: 255324 250876 4448 0
> 62532 29884
> -/+ buffers/cache: 158460 96864
> Swap: 192740 131268 61472
ck.. usage swap sudah gilaan2..
2/3 lebih swap partition sudah terpakai,
sepertinya ada aplikasi yang leaked memory.
contoh di server saya, after 1 day from reboot..
ini server production saya..
[root@proxy /]# free
total used free shared buffers cached
Mem: 1555588 1512612 42976 19880 761092 56348
-/+ buffers/cache: 695172 860416
Swap: 1060208 0 1060208
output vmstat -n 1 bagaimana..
cukup disertakan +/- 10 baris..
> squid.conf
> -------------
> cache_mem 200 MB
>
> cache_swap_low 90
> cache_swap_high 95
> maximum_object_size 4096 KB
> minimum_object_size 0 KB
> maximum_object_size_in_memory 8 KB
>
> cache_replacement_policy lru
> memory_replacement_policy lru
>
>
> # cache_dir
> cache_dir ufs /cache1 8000 24 256
> cache_dir ufs /cache2 8050 24 256
> cache_dir ufs /cache3 10400 24 256
kalau saya jadi anda..
spek :
RAM : 256 MB btw pake ram 512 mins donk
512 SDRAM PC133 just 61$ :P
/*begin squid conf*/
cache_mem 24 MB
cache_swap_low 80
cache_swap_high 100
maximum_object_size 4096 KB
minimum_object_size 0 KB
maximum_object_size_in_memory 8 KB
cache_replacement_policy heap GDSF
memory_replacement_policy heap GDSF
/* why i choose GDSF */
# The heap GDSF policy optimizes object hit rate by keeping smaller
# popular objects in cache so it has a better chance of getting a
# hit. It achieves a lower byte hit rate than LFUDA though since
# it evicts larger (possibly popular) objects.
/* speeding user feeling about my system */
half_closed_clients off
memory_pools_limit 32 MB
cache_dir aufs /cache1 4000 16 256
cache_dir aufs /cache2 4000 16 256
cache_dir aufs /cache3 4000 16 256
cache_store_log none # disable store log
client_persistent_connections on /* more than one request/connection */
server_persistent_connections on /* same as above but for squid comms */
pipeline_prefetch on
# when configuring squid using this option..
before it..
export CFLAGS="-06 -s -DNUMTHREADS=24"
download dlmalloc.c from
ftp://g.oswego.edu/pub/misc/malloc.c
copy malloc.c to
squid_source_dir/lib/dlmalloc.c
enlarge fd limit..
edit :
/usr/include/bits/types.h
change :
#define __FD_SETSIZE 1024 ==> #define __FD_SETSIZE 8192
type..
ulimit -HSN 8192
truss
./configure --enable-dlmalloc --with-pthreads
--enable-async-io=24 --enable-poll
--enable-arp-acl --enable-snmp
--enable-removal-policies --prefix=/usr
--exec_prefix=/usr --bindir=/usr/sbin
--libexecdir=/usr/lib/squid
--localstatedir=/var --sysconfdir=/etc/squid
--enable-kill-parent-hack
make && make install
abis itu edit file startup squid..
add ulimit -HSn 8192 sebelum startup squid dijalankan..
jgn lupa tambahkan ke rc.local atau ke /etc/sysctl.conf
# Enables file max 8192
fs.file-max = 8192
# Enables inode max 65536
fs.inode-max = 65536
# optimize tcp/ip stack
# Enables tcp syn backlog = 1024
net.ipv4.tcp_max_syn_backlog = 1024
# Enables ip_local_port_range = 1024 32768
net.ipv4.ip_local_port_range = 1024 32768
# change tcp_fin_timeout to 30 secs
net.ipv4.tcp_fin_timeout = 30
# change keep alive time to 30 mins
net.ipv4.tcp_fin_timeout = 1800
# disable tcp window scaling
net.ipv4.tcp_window_scaling = 0
# disable tcp sack features
net.ipv4.tcp_sack = 0
# disable tcp timestamps feature.
net.ipv4.tcp_timestamps = 0
/* note ini cuman untuk 2.2
# Enlarge rmem_default
net.core.rmem_default = 131072
# Enlarge rmem_max
net.core.rmem_max = 131072
# Enlarge wmem_default
net.core.wmem_default = 131072
# Enlarge wmem_max
net.core.wmem_max = 131072
* end of note/
# adjust freepages allocation and bdflush behavior
# because we're server, abd we have always a request to fill
# for vm subsystem
# Adjust freepages
vm.freepages = 512 1024 2048
# Adjust bdflush
vm.bdflush = 100 5000 640 256 150 30000 5000
1884 2
saya gunakan seperti diatas..
well, jika ada yamg butuh reasoning kenapa saya gunakan value2 diatas
silahkan japri saya.
regards
Budi Aditya
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