| Abstract |
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This paper describes measurement tests of Parallel Virtual
File System (PVFS) and Network File System (NFS) over
commodity Linux cluster connected with Myrinet. PVFS stores
file by storing fixed-size stripes in round-robin fashion cross I/O
servers. The number and identity of I/O servers is selectable at
execution time. Our evaluation includes testing with varying
number and configuration of servers and varying client request
patterns. Results show that NFS performance is limited by the
disk and network throughput of the server. Both NFS and PVFS
are affected by the number of clients in the system and when the
I/O nodes also serve as clients. For fixed number of servers,
PVFS performance is improved if the client nodes do not participate
as servers. For the workloads tested, PVFS performance improves
as the number of clients and servers increases to the maximum
number of nodes on the system.
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 Additional Information
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Citation:
A. W. Apon, P. D. Wolinski, G. M. Amerson,
"Sensitivity of Cluster File System Access to I/O Server Selection,"
ccgrid,
p. 183,
2nd IEEE/ACM International Symposium on Cluster Computing and the Grid (CCGRID'02),
2002
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