In April last year, I began using low-end flash (USB thumb drives) as L2ARC for a notebook with 16 GB memory. Very pleasing.
Yesterday, I got an older notebook with 4 GB memory. An opportunity to tell whether a similar approach will be worthwhile.
Early observations, with the cache device more than half full:
Over the next few days I'll occasionally use Firefox, Dolphin and so on, to begin gaining a sense of how it feels after what's in L2ARC is a truer reflection of everyday desktop stuff …
Yesterday, I got an older notebook with 4 GB memory. An opportunity to tell whether a similar approach will be worthwhile.
Early observations, with the cache device more than half full:
Code:
last pid: 2429; load averages: 0.12, 0.08, 0.07; battery: 100% up 0+00:48:38 20:07:06
36 processes: 1 running, 35 sleeping
CPU: 1.3% user, 0.0% nice, 1.2% system, 0.2% interrupt, 97.3% idle
Mem: 100M Active, 124M Inact, 1561M Wired, 1968M Free
ARC: 920M Total, 518M MFU, 13M MRU, 4096B Anon, 83M Header, 305M Other
370M Compressed, 1007M Uncompressed, 2.72:1 Ratio
Swap: 16G Total, 16G Free
PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
2227 sddm 16 20 0 321M 118M select 1 0:06 0.00% sddm-greeter
2214 root 5 20 0 117M 43M select 0 0:02 0.00% Xorg
2212 polkitd 7 27 0 2147M 24M select 1 0:00 0.00% polkitd
2230 root 7 52 0 88M 18M select 1 0:00 0.00% bsdisks
2194 root 2 52 0 71M 16M select 1 0:00 0.00% sddm
2219 root 1 52 0 67M 16M select 0 0:00 0.00% sddm-helper
2289 root 1 20 0 21M 9724K select 0 0:00 0.00% sshd
2210 root 16 42 0 50M 8572K select 0 0:00 0.00% console-kit-daemon
2156 root 1 20 0 21M 8444K select 1 0:00 0.00% sshd
2233 root 4 20 0 35M 7644K select 1 0:00 0.00% upowerd
1868 root 1 20 0 19M 7552K select 0 0:00 0.00% zfsd
1694 root 1 20 0 21M 7396K select 0 0:00 0.00% wpa_supplicant
2171 root 1 20 0 18M 7140K select 0 0:00 0.00% sendmail
2174 smmsp 1 20 0 18M 6700K pause 1 0:00 0.00% sendmail
2120 ntpd 1 20 0 21M 6656K select 1 0:00 0.00% ntpd
2220 sddm 1 52 0 17M 4512K wait 0 0:00 0.00% ck-launch-session
2292 root 1 20 0 14M 4308K pause 0 0:00 0.00% csh
2074 messagebus 1 20 0 14M 4012K select 1 0:00 0.00% dbus-daemon
2226 sddm 1 49 0 14M 3636K select 1 0:00 0.00% dbus-daemon
2429 root 1 20 0 14M 3440K CPU1 1 0:00 0.00% top
2225 sddm 1 52 0 13M 2856K wait 0 0:00 0.00% dbus-run-session
1808 _dhcp 1 28 0 13M 2816K select 1 0:00 0.00% dhclient
2021 root 1 20 0 13M 2748K select 1 0:00 0.00% syslogd
1746 root 1 4 0 13M 2708K select 0 0:00 0.00% dhclient
1743 root 1 23 0 13M 2636K select 0 0:00 0.00% dhclient
2159 root 1 20 0 13M 2536K nanslp 0 0:00 0.00% cron
2200 root 1 52 0 13M 2248K ttyin 0 0:00 0.00% getty
2206 root 1 52 0 13M 2248K ttyin 0 0:00 0.00% getty
2204 root 1 52 0 13M 2248K ttyin 0 0:00 0.00% getty
2202 root 1 52 0 13M 2248K ttyin 0 0:00 0.00% getty
2203 root 1 52 0 13M 2248K ttyin 1 0:00 0.00% getty
2205 root 1 52 0 13M 2248K ttyin 1 0:00 0.00% getty
2207 root 1 52 0 13M 2248K ttyin 1 0:00 0.00% getty
2201 root 1 52 0 13M 2248K ttyin 1 0:00 0.00% getty
1501 root 1 52 0 12M 2072K pause 0 0:00 0.00% adjkerntz
1809 root 1 20 0 11M 1540K select 0 0:00 0.00% devdOver the next few days I'll occasionally use Firefox, Dolphin and so on, to begin gaining a sense of how it feels after what's in L2ARC is a truer reflection of everyday desktop stuff …