atopvmstatdstat- Combines vmstat, iostat, ifstat, netstat information and morespeedometer- ASCII graphs
iftop- Amazing network bandwidth utility to analyse what is really happening on your eth
Nick Mazurkin mazurkin
mazurkin
/ speedtest.sh
Created
February 6, 2018 13:32
— forked from mariusrugan/speedtest.sh
CURL download benchmark
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #!/ffp/bin/bash | |
| SOURCES=( | |
| "http://ns0.multikabel.net/100mb.nul" | |
| "http://servermars.nl/100mb.bin" | |
| "http://speedtest.tweak.nl/100mb.bin" | |
| "http://cachefly.cachefly.net/100mb.test" | |
| "http://mirror.leaseweb.com/speedtest/100mb.bin" | |
| "http://mirror.de.leaseweb.net/speedtest/100mb.bin" | |
| "http://178.238.129.83/bigtest.tgz" |
mazurkin
/ latency.txt
Last active
August 29, 2015 14:22
— forked from jboner/latency.txt
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| 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 | |
| Send 1K bytes over 1 Gbps network 10,000 ns 0.01 ms | |
| Read 4K randomly from SSD* 150,000 ns 0.15 ms |