sudo apt install curl git
curl -L https://nixos.org/nix/install | sh -s -- --daemon
# follow prompts
git clone <this-repo> ~/nix
# edit files, replace my username with yours
cd ~
mkdir -p ~/.local/state/nix/profiles
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go test -run=. -bench=. -benchtime=5s -count 5 -benchmem -cpuprofile=cpu.out -memprofile=mem.out -trace=trace.out ./package | tee bench.txt | |
go tool pprof -http :8080 cpu.out | |
go tool pprof -http :8081 mem.out | |
go tool trace trace.out | |
go tool pprof $FILENAME.test cpu.out | |
# (pprof) list <func name> | |
# go get -u golang.org/x/perf/cmd/benchstat | |
benchstat bench.txt |
Picking the right architecture = Picking the right battles + Managing trade-offs
- Clarify and agree on the scope of the system
- User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?
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#import <Foundation/Foundation.h> | |
#import <Cocoa/Cocoa.h> | |
#import <unistd.h> | |
BOOL copy_to_clipboard(NSString *path) | |
{ | |
// http://stackoverflow.com/questions/2681630/how-to-read-png-image-to-nsimage | |
NSImage * image; | |
if([path isEqualToString:@"-"]) | |
{ | |
// http://caiustheory.com/read-standard-input-using-objective-c |