Richard HJ's Web Site

Index of ATLAS Tests

 

RAID5 Tests on Elonex PC using multiple write streams and files Nov 06

RAID5 Tests on Elonex PC for single stream sequential file access Nov 06:

  • RAID disk system Write: memory to Disk transfer rates as a function of file size for ext2, ext3 and xfs Linux file systems.
  • RAID disk system Read: Disk to memory transfer rates as a function of file size for ext2, ext3 and xfs Linux file systems.

 

udpmon tests CERN <--> Krakow 28-29 Oct 06

The traffic on GEANT over the route PL-DE-CH taken on 11:57 29Sep06.

The traffic over Pionier taken on 11:57 29Sep06.

 

Summary of Remote Farm Network tests during Summer 2004

 

tcpmon zeus13-pcatb121 Network Tests via CCC link with web100 10k & 1 Mbyte on 4 Oct 04
1Gbit link

tcpmon zeus13-pcatb121 Network Tests via CCC link with web100 10k & 1 Mbyte on 22 Aug 04

UDP Tests CERN-Krakow (pcatb121-zeus13) 21 Aug 04 100Mbit interface in Krakow

CERN-Manchester Tests with NAT

  • UDPmon
  • tcpmon with web100

Lightpath-pcatb124 Network tcpmon 10k & 1 Mbyte on 2 Aug04. Shows long time for first events due to rtt and slowstart.

 

tcpmon with 1Mbyte response (and iperf?) with web100 gig6 to pcatb89 standard TCP shows cwnd dropping to 0 for each request

 

UDPmon tests from pcat89 to gig6 made between 16:30 and : .
UDPmon tests from gig6 to pcat89 made between 11:10 and 16:00.

Traffic on the UK-FR-CH route 19 Jul 04 at 00:17

gig6 requesting data blocks from pcatb89 at CERN with web100 time series recorded from pcatb89. Standard TCP stack & message size 0.5 adn 1.0 Mbyte

TCP Request-Response Manchester-CERN 10-12 Jul 04 (gig6-pcatb89)

UDP Tests Manchester-CERN 10 Jul 04 (pcatb89 to gig6) Linespeed ( Wire rate >950 MHz) for large packets, No loss large packets but 100% loss at wire speed for packets < 400 bytes

ATLAS Remote Trigger/DAQ Farm: Plans, Tools & Initial Tests Manchester-CERN May 04
Remove 700 Mbit/s limitation

 

 

Scalalable Cohernet Interface tests - Daughter Card, SCI-PCI interface & lc1 (1992 to 1998)

 

Enjoy, but the usual disclaimers apply!

Feedback and bug-reports are welcome and I will do my best to fix things

©2003, 2004, 2005 Richard Hughes-Jones (R.Hughes-Jones@manchester.ac.uk)
3 Apr 2005.

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