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