45 lines
1,018 B
Markdown
45 lines
1,018 B
Markdown
|
---
|
||
|
|
title: Compiling tarsnap on RaspberryPi
|
||
|
|
date: 2014-02-01 21:59:27
|
||
|
|
tags: [raspberry pi, tarsnap]
|
||
|
|
---
|
||
|
|
|
||
|
|
Just a quickie for `tarsnap 1.0.35.` Featuring my new favourite, download software called aria2.
|
||
|
|
|
||
|
|
```
|
||
|
|
aptitude install aria2 libssl-dev zlib1g-dev e2fslibs-dev
|
||
|
|
aria2c https://www.tarsnap.com/download/tarsnap-autoconf-1.0.35.tgz
|
||
|
|
aria2c https://www.tarsnap.com/download/tarsnap-sigs-1.0.35.asc
|
||
|
|
gpg --recv-key 2F102ABB
|
||
|
|
gpg --decrypt tarsnap-sigs-1.0.35.asc
|
||
|
|
sha256sum tarsnap-autoconf-1.0.35.tgz # should get the value from sig file, 6c9f67....9a
|
||
|
|
tar xf tarsnap-autoconf-1.0.35.tgz
|
||
|
|
cd tarsnap-autoconf-1.0.35/
|
||
|
|
./configure
|
||
|
|
time nice ionice make -j2
|
||
|
|
```
|
||
|
|
|
||
|
|
How do I know that `-j2` really gives some advantage on raspi ? Well, here is the benchmark:
|
||
|
|
|
||
|
|
```
|
||
|
|
#fresh, j1
|
||
|
|
real 14m7.129s
|
||
|
|
user 6m30.790s
|
||
|
|
sys 0m21.640s
|
||
|
|
|
||
|
|
#-j2
|
||
|
|
real 11m33.868s
|
||
|
|
user 6m36.690s
|
||
|
|
sys 0m19.880s
|
||
|
|
|
||
|
|
#-j1 again, caches warmed up
|
||
|
|
real 12m38.598s
|
||
|
|
user 6m30.960s
|
||
|
|
sys 0m20.470s
|
||
|
|
|
||
|
|
#-j2 again
|
||
|
|
real 10m14.975s
|
||
|
|
user 6m34.980s
|
||
|
|
sys 0m20.710s
|
||
|
|
```
|