| // $XDG_CONFIG_HOME/xkb/symbols/custom | |
| // Makes ALT + CAPS_LOCK act as 3rd level switch | |
| // Works sporadically | |
| partial modifier_keys | |
| xkb_symbols "alt_caps_mode_switch" { | |
| key <CAPS> { | |
| type[Group1]="PC_ALT_LEVEL2", | |
| [ Caps_Lock, ISO_Level3_Shift ] | |
| }; |
| Latency Comparison Numbers (~2012) | |
| ---------------------------------- | |
| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns 3 us | |
| Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
| Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
Grr this took hours to figure out. I was trying to install MJPG-streamer and running VLC command lines and all this crap but nothing worked.
First install motion:
~> sudo apt-get install motion
Then create a config file:
~> mkdir ~/.motion
~> nano ~/.motion/motion.conf