Hi Adrian,
I didn’t quite say that. It is possible if Linux thread priorities actually did something reasonable. Perhaps they do but they were hardly reasonable a decade ago. So, there’s room for experimentation.
Andy
From: Adrian Sevcenco
Sent: Thursday, March 14, 2019 3:36 PM
To: xrootd/xrootd
Cc: Andrew Hanushevsky ; Comment
Subject: Re: [xrootd/xrootd] Reserve threads for metadata and status operations (#927)
Well, i do not know the insides of xrootd, i just assumed that you have a threadpool (given the format of xrd.sched) .. also i do not know how queries/requests are dispatched (and if for xrootd there is a difference between query and request) .. so, from your answer i get that with the current design is not possible to make the service responsive when is under heavy IO load... thank you for info!
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