Slow uploads through BIG-IP
We have a web app running behind an F5 BIG-IP running version 11.6.0. The app is responsible for storing large binary files so it regularly gets large uploads and downloads. During initial setup a while ago I was able to get the download speeds increased to around 30Mbps which was acceptable. We did this by updating the TCP profiles and found the Memory Management settings directly correlated to significant improvements. Below is what we're using for both client and server TCP profiles with the tcp-lan-optimized and tcp-wan-optimized profiles being the parent. We also have no iRules applied to this VIP. Proxy Buffer High: 2516544 Proxy Buffer Low: 1258272 Receive Window: 1179630 Send Buffer: 1179630 Nagle: Disabled The receive window and send buffer are the ones that have direct correlation to the increases in download speeds. I've been trying to increase our upload speeds, but can't seem to find any setting that makes a difference. If I upload directly from the node the app runs on itself I'm getting 30M+ upload speeds, but my desktop running curl shows around 975k on average. Output from curl on upload and download is below. Any suggestions on what to try next or how to troubleshoot? C:\Temp>curl -u user -T file.mp4 -X PUT https://app.example.com/abc/test-generic/ > nul Enter host password for user 'user': % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 5 616M 0 0 5 34.7M 0 975k 0:10:46 0:00:36 0:10:10 1025k^C C:\Temp>curl -O https://app.example.com/abc/test-generic/file.rpm > nul % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 117M 100 117M 0 0 22.1M 0 0:00:05 0:00:05 --:--:-- 26.1M