(C-x means ctrl+x, M-x means alt+x)
The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf
:
; Sample supervisor config file. | |
[unix_http_server] | |
file=/tmp/supervisor.sock ; (the path to the socket file) | |
;chmod=0700 ; sockef file mode (default 0700) | |
;chown=nobody:nogroup ; socket file uid:gid owner | |
;username=user ; (default is no username (open server)) | |
;password=123 ; (default is no password (open server)) | |
;[inet_http_server] ; inet (TCP) server disabled by default |
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 |
;SMBDIS.ASM - A COMPREHENSIVE SUPER MARIO BROS. DISASSEMBLY | |
;by doppelganger (doppelheathen@gmail.com) | |
;This file is provided for your own use as-is. It will require the character rom data | |
;and an iNES file header to get it to work. | |
;There are so many people I have to thank for this, that taking all the credit for | |
;myself would be an unforgivable act of arrogance. Without their help this would | |
;probably not be possible. So I thank all the peeps in the nesdev scene whose insight into | |
;the 6502 and the NES helped me learn how it works (you guys know who you are, there's no |
Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.
$ python -m SimpleHTTPServer 8000
import java.io.FileDescriptor; | |
import java.io.FileOutputStream; | |
import java.io.IOException; | |
import java.io.OutputStream; | |
import java.io.PrintStream; | |
public class HelloWorld{ | |
private static HelloWorld instance; | |
public static void main(String[] args){ | |
instantiateHelloWorldMainClassAndRun(); |
package join | |
import ( | |
"fmt" | |
"strings" | |
"testing" | |
) | |
var ( | |
testData = []string{"a", "b", "c", "d", "e"} |
Map | Action |
---|---|
<F1> | Causes Netrw to issue help |
<cr> | Netrw will enter the directory or read the file |
<del> | Netrw will attempt to remove the file/directory |
- | Makes Netrw go up one directory |
a | Toggles between normal display, hiding (suppress display of files matching g:netrw_list_hide) showing (display only files which match g:netrw_list_hide) |
c | Make browsing directory the current directory |
C | Setting the editing window |
d | Make a directory |
My friend Michael Jackson turned off github issues on one of his smaller projects. It got me thinking...
Maintainers getting burned out is a problem. Not just for the users of a project but the mental health of the maintainer. It's a big deal for both parties. Consumers want great tools, maintainers want to create them, but maintainers don't want to be L1 tech support, that's why they
This is a short post that explains how to write a high-performance matrix multiplication program on modern processors. In this tutorial I will use a single core of the Skylake-client CPU with AVX2, but the principles in this post also apply to other processors with different instruction sets (such as AVX512).
Matrix multiplication is a mathematical operation that defines the product of