Hi @simonmichal ,
Sorry for the delay in my response and thank you for your thorough explanation!
The version I used to run those tests initially was 4.12.8, but I've just tried again with version 5 and I still see 5 threads when running the xrdcp process:

[~]: xrootd -v
v5.3.1
[~]: ps aux | grep xrdcp
vpadulan  176936 33.6  0.1 463728 79400 pts/1    Sl+  09:17   0:01 xrdcp root://eospublic.cern.ch//eos/opendata/cms/derived-data/AOD2NanoAODOutreachTool/Run2012BC_DoubleMuParked_Muons.root .
vpadulan  177010  0.0  0.0 221396   852 pts/2    S+   09:17   0:00 grep --color=auto xrdcp
[~]: ps hH p 176936 | wc -l
5

I will look further into XRD_PARALLELEVTLOOP, it is unclear for example how much this can change an application runtime which is already multithreaded /multiprocessed with high thread/process count.

Up to you whether you want to close this issue now or understand better why I still get 5 threads. Let me know if I can help in that direction.

—
You are receiving this because you are subscribed to this thread.
Reply to this email directly, view it on GitHub, or unsubscribe.
Triage notifications on the go with GitHub Mobile for iOS or Android.

[ { "@context": "http://schema.org", "@type": "EmailMessage", "potentialAction": { "@type": "ViewAction", "target": "https://github.com/xrootd/xrootd/issues/1495#issuecomment-910016997", "url": "https://github.com/xrootd/xrootd/issues/1495#issuecomment-910016997", "name": "View Issue" }, "description": "View this Issue on GitHub", "publisher": { "@type": "Organization", "name": "GitHub", "url": "https://github.com" } } ]

Use REPLY-ALL to reply to list

To unsubscribe from the XROOTD-DEV list, click the following link:
https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-DEV&A=1