fmikker

Device  : LGE LG-H815 (g4_global_com)
Android : 7.1.2 (11091c41a8, lineage_h815-userdebug 7.1.2 NJH47F 11091c41a8)
Memory  : 25M (6.47% free, 768M max)
Memclass: 288
OS Host : agrippa.acc.umu.se
App     : Signal 4.11.5

--------- beginning of system
10-21 20:30:56.905 31133 31133 W ViewRootImpl[PopupWindow:1de5b27]: Dropping event due to root view being removed: MotionEvent { action=ACTION_MOVE, actionButton=0, id[0]=0, x[0]=314.0, y[0]=-21.0, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=37511696, downTime=37511688, deviceId=4, source=0x1002 }
10-21 20:33:12.203 31133 31133 W ViewRootImpl[ConversationListActivity]: Dropping event due to no window focus: KeyEvent { action=ACTION_DOWN, keyCode=KEYCODE_BACK, scanCode=0, metaState=0, flags=0x48, repeatCount=0, eventTime=37646826, downTime=37646826, deviceId=-1, source=0x101 }

fmikker

Keybase proof

I hereby claim:

• I am fmikker on github.
• I am bol (https://keybase.io/bol) on keybase.
• I have a public key ASBdnMqJAUtxC3sj91LS_kIEhazRFu7YoYqJ3KpLA3tGdgo

To claim this, I am signing this object:

fmikker

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs