| # source:http://reocities.com/SiliconValley/heights/7052/opcode.txt | |
| From: mark@omnifest.uwm.edu (Mark Hopkins) | |
| Newsgroups: alt.lang.asm | |
| Subject: A Summary of the 80486 Opcodes and Instructions | |
| (1) The 80x86 is an Octal Machine | |
| This is a follow-up and revision of an article posted in alt.lang.asm on | |
| 7-5-92 concerning the 80x86 instruction encoding. | |
| The only proper way to understand 80x86 coding is to realize that ALL 80x86 |
Just run this from your Mac terminal and it'll drop you in a container with full permissions on the Docker VM. This also works for Docker for Windows for getting in Moby Linux VM (doesn't work for Windows Containers).
docker run -it --rm --privileged --pid=host justincormack/nsenter1
more info: https://github.com/justincormack/nsenter1
I wrote this answer on stackexchange, here: https://stackoverflow.com/posts/12597919/
It was wrongly deleted for containing "proprietary information" years later. I think that's bullshit so I am posting it here. Come at me.
Amazon is a SOA system with 100s of services (or so says Amazon Chief Technology Officer Werner Vogels). How do they handle build and release?
| # | |
| # Working with branches | |
| # | |
| # Get the current branch name (not so useful in itself, but used in | |
| # other aliases) | |
| branch-name = "!git rev-parse --abbrev-ref HEAD" | |
| # Push the current branch to the remote "origin", and set it to track | |
| # the upstream branch | |
| publish = "!git push -u origin $(git branch-name)" |
For a brief user-level introduction to CMake, watch C++ Weekly, Episode 78, Intro to CMake by Jason Turner. LLVM’s CMake Primer provides a good high-level introduction to the CMake syntax. Go read it now.
After that, watch Mathieu Ropert’s CppCon 2017 talk Using Modern CMake Patterns to Enforce a Good Modular Design (slides). It provides a thorough explanation of what modern CMake is and why it is so much better than “old school” CMake. The modular design ideas in this talk are based on the book [Large-Scale C++ Software Design](https://www.amazon.de/Large-Scale-Soft
| Latency Comparison Numbers | |
| -------------------------- | |
| 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 |
I hereby claim:
To claim this, I am signing this object:
| sub vcl_hit { | |
| if (obj.ttl >= 0s) { | |
| # normal hit | |
| return (deliver); | |
| } | |
| # We have no fresh fish. Lets look at the stale ones. | |
| if (std.healthy(req.backend_hint)) { | |
| # Backend is healthy. Limit age to 10s. | |
| if (obj.ttl + 10s > 0s) { | |
| set req.http.grace = "normal(limited)"; |