Chronological list of the "systemd for Administrators" series published on 0pointer.net/blog:
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You can `wget` your way out of the GitHub repo to get a tar file ([archive][1]): | |
wget --no-check-certificate https://github.com/User/repo/archive/master.tar.gz | |
# better, if the certificate authorities are present: | |
wget https://github.com/User/repo/archive/master.tar.gz | |
will get you a file named 'master' from the user 'User''s repo 'repo'. | |
The [updated V3 API url][2] is: |
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/* | |
scalaVersion := "2.12.7" | |
resolvers += Resolver.sonatypeRepo("snapshots") | |
libraryDependencies += "co.fs2" %% "fs2-core" % "1.0.1-SNAPSHOT" | |
*/ | |
import cats._ | |
import cats.implicits._ | |
import cats.effect._ |
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import random | |
def collapse_die(dice_count, dice_size): | |
''' | |
Collapse on a 1, rerolling remaining dice. | |
All 1s => 0. | |
''' | |
# Error checking. | |
if dice_count < 1: |
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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 |