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Thanks, did that varying number of chunks in flight and size: **1 standard socket:** ``` [root@node]# for chunks in 4 8 16; do for chunksize in 4194304 16777216 67108864 134217728; do echo chunks:$chunks size:$chunksize; env XRD_CPPARALLELCHUNKS=$chunks XRD_CPCHUNKSIZE=$chunksize time -f%es xrdcp e.meta4 /dev/null -f --nopbar; done; done chunks:4 size:4194304 5.13s chunks:4 size:16777216 4.65s chunks:4 size:67108864 5.03s chunks:4 size:134217728 5.14s chunks:8 size:4194304 5.14s chunks:8 size:16777216 4.56s chunks:8 size:67108864 4.78s chunks:8 size:134217728 5.42s chunks:16 size:4194304 4.55s chunks:16 size:16777216 4.52s chunks:16 size:67108864 5.26s chunks:16 size:134217728 5.54s ``` **4 parallel sockets:** ``` [root@node]# for chunks in 4 8 16; do for chunksize in 4194304 16777216 67108864 134217728; do echo chunks:$chunks size:$chunksize; env XRD_CPPARALLELCHUNKS=$chunks XRD_CPCHUNKSIZE=$chunksize time -f%es xrdcp -S 4 e.meta4 /dev/null -f --nopbar; done; done chunks:4 size:4194304 4.55s chunks:4 size:16777216 3.92s chunks:4 size:67108864 4.58s chunks:4 size:134217728 4.87s chunks:8 size:4194304 4.45s chunks:8 size:16777216 4.03s chunks:8 size:67108864 4.78s chunks:8 size:134217728 5.09s chunks:16 size:4194304 4.26s chunks:16 size:16777216 5.25s chunks:16 size:67108864 5.00s chunks:16 size:134217728 5.22s ``` -- Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/issues/1938#issuecomment-1451001091 You are receiving this because you commented. Message ID: <[log in to unmask]> ######################################################################## 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