pwb history page zoom-out is very slow
Issue #243
resolved
This is a tracking page for the problem with agmini history page: https://daq16.triumf.ca/?cmd=History&group=PWB&panel=v_p2
The zoom-out function responds very slowly, after I reached the “1 month” time scale, the page is stuck in “updating data”.
I will add more information here as I debug this problem (not clear if it’s the web page, mhttpd or the reading of data from disk).
K.O.
Comments (3)
-
reporter -
reporter mongoose is sending data in blocks of 1460 byte, no wonder mhttpd bogs down with 100% cpu usage. (mongoose networking is single-threaded). I tried changing this to 1460000 bytes, seems to work, zooming out history pages is fast again. K.O.
-
reporter - changed status to resolved
- Log in to comment
see 100% cpu use in mhttpd, this looks to be a problem with the mongoose web server library. K.O.