3 ms·
Simulating a Slow Internet Connection
- BWStearns 13y agoConnect to your service via Tor :)
- Terretta 13y agoIf you're on a Mac, try the Network Link Conditioner from the Hardware IO tools downloads in Apple Dev portal. http://www.neglectedpotential.com/2012/05/slow-your-apps-roll/ http://www.neglectedpotential.com/2012/05/slow-your-apps-rol... PS. The sleep trick is helpful, but in addition to latency, you ideally want to experience packet loss and other weirdness.
- tincholio 13y agoFor TCP connections packet loss will translate into latency... His method of simulation is not good, though. On linux, he could (probably) emulate this properly with NetEm and some virtual interfaces, by limiting rates and introducing actual "propagation delays"
- ddb 13y agoThis can be done with native osx tools as well. Here's a snippet I created once: # First add a rule for all local traffic to port 80 to go into pipe 1 # 100 is the rule number which will be used for referencing the rule later sudo ipfw add 100 pipe 1 ip from 127.0.0.1 to 127.0.0.1 dst-port http # To display the rule use # sudo ipfw show 100 # configure the settings of the pipe as you please # 50kbit/s bandwidth sudo ipfw pipe 1 config bw 50Kbit # 200ms lag sudo ipfw pipe 1 config delay 200ms # 20% random packet loss sudo ipfw pipe 1 config plr 0.2 # To display the current connections on the pipe use: # sudo ipfw pipe 1 show # when finished testing don't forget to delete rule and pipe sudo ipfw delete 100 sudo ipfw pipe 1 delete
- gingerlime 13y agoThis looks great, do you know if there's an equivalent for linux? can you do something like this with iptables / ufw?
- nilnull 13y agoTry the tc command which allows you to control the traffic and set things like latencies, simulate physical congestion etc.
- cortesoft 13y agoThe one I have always used on Mac is SpeedLimit: http://mschrag.github.io/ http://mschrag.github.io/
- marquis 13y agoAnother good method: http://daniel.haxx.se/blog/2010/12/14/add-latency-to-localhost/ http://daniel.haxx.se/blog/2010/12/14/add-latency-to-localho...
- idunno246 13y agoCan't recommend http://www.charlesproxy.com/ http://www.charlesproxy.com/ enough for any web development. One of a long list of features is throttling.
- binarycrusader 13y agoOn Solaris, its trivial to simulate lower bandwidths using VNICs: https://blogs.oracle.com/JeffV/entry/virtual_network_part_4 https://blogs.oracle.com/JeffV/entry/virtual_network_part_4 Or, alternatively, using flowadm: http://docs.oracle.com/cd/E19963-01/html/821-1458/gfkci.html http://docs.oracle.com/cd/E19963-01/html/821-1458/gfkci.html If you want to simulate latency, that's a little harder, but can be done using hxbt: http://www.c0t0d0s0.org/archives/6625-Less-known-Solaris-features-hxbt-or-WAN-emulation.html http://www.c0t0d0s0.org/archives/6625-Less-known-Solaris-fea... http://web.archive.org/web/20130517125147/http://hub.opensolaris.org/bin/download/Community+Group+networking/WebHome/hxbt.tar.gz http://web.archive.org/web/20130517125147/http://hub.opensol...