Hi @esindril - Just to clear up misconceptions. There is no overhead for the atomic I suggested on platforms besides ARM (and there it is pretty small compared to a lock). Not all synchronization primitives are built the same! Brian --- Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/pull/251#issuecomment-121630434 ######################################################################## 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