Hello, All.
I have a questions:
Here are
http://pastebin.com/raw.php?i=MG2s82fg
Please help me.
--
Vladimir Laskov
samflanker@gmail.com
I have a questions:
- What kernel subsystem uses a lot of memory?
- How to avoid it?
- How to limit the memory for the kernel?
- Why uses vm.kmem_size_max="18G" and Wired="23G"?
Code:
# top
last pid: 44881; load averages: 0.65, 0.73, 0.78 up 8+05:42:36 10:00:32
207 processes: 1 running, 206 sleeping
CPU: % user, % nice, % system, % interrupt, % idle
Mem: 488M Active, 9828M Inact, 23G Wired, 8356K Cache, 29G Free
ARC: 16G Total, 2176M MFU, 9662M MRU, 5394K Anon, 2505M Header, 2280M Other
Swap:
***
# uname -a
FreeBSD anonymous 10.1-RELEASE-p16 FreeBSD 10.1-RELEASE-p16 #0: Tue Jul 28 12:04:19 UTC 2015 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64
# cat /boot/loader.conf
zfs_load="YES"
vfs.root.mountfrom="zfs:tank/root"
mfip_load="YES"
vmm_load="YES"
nmdm_load="YES"
if_bridge_load="YES"
if_tap_load="YES"
aio_load="YES"
cc_htcp_load="YES"
coretemp_load="YES"
accf_data_load="YES"
accf_http_load="YES"
accf_dns_load="YES"
loader_logo="orb"
vm.kmem_size="18G"
vm.kmem_size_max="18G"
kern.ipc.semmni="2048"
kern.ipc.semmns="512"
kern.ipc.semmnu="256"
kern.ipc.shmseg="2048"
kern.ipc.shm_use_phys=1
kern.geom.label.disk_ident.enable="0"
kern.geom.label.gpt.enable="1"
kern.geom.label.gptid.enable="0"
vfs.zfs.prefetch_disable="1"
vfs.zfs.txg.timeout="5"
vfs.zfs.arc_min="1G"
vfs.zfs.arc_max="16G"
vfs.zfs.arc_meta_limit="8G"
vfs.zfs.vol.mode="2"
vfs.zfs.l2arc_noprefetch="1"
hw.igb.txd="2048"
hw.igb.rxd="2048"
hw.igb.rx_process_limit="-1"
hw.igb.enable_aim="1"
hw.igb.max_interrupt_rate="32000"
net.inet.tcp.syncache.hashsize="1024"
net.inet.tcp.hostcache.cachelimit="0"
net.link.ifqmaxlen="128"
kern.features.inet6="0"
# cat /etc/sysctl.conf
vfs.zfs.min_auto_ashift=12
vfs.zfs.l2arc_write_boost=268435456
vfs.zfs.l2arc_write_max=268435456
security.jail.sysvipc_allowed=1
security.jail.allow_raw_sockets=1
security.bsd.unprivileged_read_msgbuf=0
kern.ipc.somaxconn=4096
net.inet.ip.forwarding=1
kern.ipc.maxsockbuf=4194304
net.inet.tcp.sendbuf_max=4194304
net.inet.tcp.recvbuf_max=4194304
net.inet.tcp.cc.algorithm=htcp
net.inet.tcp.cc.htcp.adaptive_backoff=1
net.inet.tcp.cc.htcp.rtt_scaling=1
#kern.ipc.soacceptqueue=1024
net.inet.tcp.mssdflt=1460
net.inet.tcp.minmss=1300
net.inet.tcp.rfc1323=1
net.inet.tcp.rfc3390=1
net.inet.tcp.sack.enable=1
net.inet.tcp.tso=0
net.inet.tcp.nolocaltimewait=1
net.inet.tcp.experimental.initcwnd10=1
net.inet.tcp.syncache.rexmtlimit=0
net.inet.ip.rtexpire=2
net.inet.ip.rtminexpire=2
net.inet.tcp.syncookies=0
dev.igb.0.fc=0
dev.igb.1.fc=0
#dev.igb.2.fc=0
#dev.igb.3.fc=0
net.link.tap.user_open=1
net.link.tap.up_on_open=1
net.inet6.ip6.auto_linklocal=0 vmstat -m and vmstat -z outputshttp://pastebin.com/raw.php?i=MG2s82fg
Please help me.
--
Vladimir Laskov
samflanker@gmail.com