Verify Permissions
diskutil verifyPermissions /
Repair Permissions
diskutil repairPermissions /
(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.
git branch -m old_branch new_branch # Rename branch locally | |
git push origin :old_branch # Delete the old branch | |
git push --set-upstream origin new_branch # Push the new branch, set local branch to track the new remote |
Here's an example of how to embed a Gist on GitHub Pages:
{% gist 5555251 %}
All you need to do is copy and paste the Gist's ID from the URL (here 5555251
), and add it to a gist
tag surrounded by {%
and %}
.
Since this is on Hacker News and reddit...
_t
in my types. I spend a lot of time at a level where I can do that; "reserved for system libraries? I am the system libraries".char *
s.type * name
, however, is entirely intentional.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 |