Test results for the PVFS filesystem on U2

Tests against the /pvfsv2/scratch filesystem

Test results using the PVFSv2 filesystem served from 16 nodes,
each node running as a data & metadata server.
Filesystem mounted on 16 client (only) nodes on the /pvfsv2/scratch
directory. Test data written to a subdirectory using the "simple_stripe"
distribution over a 256K stripe with iozone writing 4GB of data from
each client in 256K blocks:

Mean Average:

[PBS script for this test] - [Full output from the iozone tests]

Test results using the PVFSv2 filesystem served from 16 nodes,
each node running as a data & metadata server.
Filesystem mounted on 16 client (only) nodes on the /pvfsv2/scratch
directory. Test data written to a subdirectory using the "twod_stripe"
distribution using 4 groups of 4 servers, striping 4 x 64KB = 256KB stripe
over each group, writing 8 * 256KB = 2MB to each group in turn.
iozone writing 4GB of data from the client in 256K blocks:

Mean Average:

[PBS script for this test] - [Full output from the iozone tests]

Test results using the PVFSv2 filesystem served from 16 nodes,
each node running as a data & metadata server.
Filesystem mounted on 16 client (only) nodes on the /pvfsv2/scratch
directory. Test data written to a subdirectory using the "varstrip_dist"
distribution with iozone writing 4GB of data from each client in 256K blocks.
The distribution was configured to write 16K to each node, thereby creating
a 256K stripe over the 16 server nodes:

Mean Average:

[PBS script for this test] - [Full output from the iozone tests]

Test results using the PVFSv2 filesystem served from 16 nodes,
each node running as a data & metadata server.
Filesystem mounted on 1 client (only) node on the /pvfsv2/scratch
directory. Test data written to a subdirectory using the "simple_stripe"
distribution over a 256K stripe with iozone writing 4GB of data from
the client in 256K blocks:

Mean Average:

[PBS script for this test] - [Full output from the iozone tests]

Test results using the PVFSv2 filesystem served from 16 nodes,
each node running as a data & metadata server.
Filesystem mounted on 1 client (only) node on the /pvfsv2/scratch
directory. Test data written to a subdirectory using the "twod_stripe"
distribution using 4 groups of 4 servers, striping 4 x 64KB = 256KB stripe
over each group, writing 8 * 256KB = 2MB to each group in turn.
iozone writing 4GB of data from the client in 256K blocks:

Mean Average:

[PBS script for this test] - [Full output from the iozone tests]

Test results using the PVFSv2 filesystem served from 16 nodes,
each node running as a data & metadata server.
Filesystem mounted on 1 client (only) node on the /pvfsv2/scratch
directory. Test data written to a subdirectory using the "varstrip_dist"
distribution with iozone writing 4GB of data from each client in 256K blocks.
The distribution was configured to write 16K to each node, thereby creating
a 256K stripe over the 16 server nodes:

Mean Average:

[PBS script for this test] - [Full output from the iozone tests]

Tests against PVFSv2 on the fly filesystems

Test results using PVFSv2 on the fly filesystem over 16 nodes,
where all nodes run data server, metadata server & client.
Filesystem mounted on the ${PBSTMPDIR}/mnt directory. Test data
written to a subdirectory using the "simple_stripe" distribution
over a 256K stripe with iozone writing 4GB of data from each client
in 256K blocks:

Mean Average:

[PBS script for this test] - [Full output from the iozone tests]

Test results using PVFSv2 on the fly filesystem over 16 nodes,
where all nodes run data server, metadata server & client.
Filesystem mounted on the ${PBSTMPDIR}/mnt directory. Test data
written to a subdirectory using the "twod_stripe" distribution
using 4 groups of 4 servers, striping 4 x 64KB = 256KB stripe over
each group, writing 8 * 256KB = 2MB to each group in turn.
iozone writing 4GB of data from the client in 256K blocks:

Mean Average:

[PBS script for this test] - [Full output from the iozone tests]

Test results using PVFSv2 on the fly filesystem over 16 nodes,
where all nodes run data server, metadata server & client.
Filesystem mounted on the ${PBSTMPDIR}/mnt directory. Test data
written to a subdirectory using the "varstrip_dist" distribution
with iozone writing 4GB of data from each client in 256K blocks.
The distribution was configured to write 16K to each node, thereby creating
a 256K stripe over the 16 nodes:

Mean Average:

[PBS script for this test] - [Full output from the iozone tests]

Test results using PVFSv2 on the fly filesystem over 16 nodes,
where all nodes run data server, metadata server & client.
Filesystem mounted on the ${PBSTMPDIR}/mnt directory. Test data
written to a subdirectory using the "simple_stripe" distribution
over a 256K stripe with iozone writing 4GB of data from "one client"
in 256K blocks:

Mean Average:

[PBS script for this test] - [Full output from the iozone tests]

Test results using PVFSv2 on the fly filesystem over 16 nodes,
where all nodes run data server, metadata server & client.
Filesystem mounted on the ${PBSTMPDIR}/mnt directory. Test data
written to a subdirectory using the "twod_stripe" distribution
using 4 groups of 4 servers, striping 4 x 64KB = 256KB stripe over
each group, writing 8 * 256KB = 2MB to each group in turn.
iozone writing 4GB of data from "one client" in 256K blocks:

Mean Average:

[PBS script for this test] - [Full output from the iozone tests]

Test results using PVFSv2 on the fly filesystem over 16 nodes,
where all nodes run data server, metadata server & client.
Filesystem mounted on the ${PBSTMPDIR}/mnt directory. Test data
written to a subdirectory using the "varstrip_dist" distribution
with iozone writing 4GB of data from "one client" in 256K blocks.
The distribution was configured to write 16K to each node, thereby creating
a 256K stripe over the 16 nodes:

Mean Average:

[PBS script for this test] - [Full output from the iozone tests]

Test results using PVFSv2 on the fly filesystem over 1 node,
where the node runs data server, metadata server & client.
Filesystem mounted on the ${PBSTMPDIR}/mnt directory. Test data
written to a subdirectory using the "simple_stripe" distribution
over a 16K "stripe" (writing 16K blocks) with iozone writing 4GB of
data from the client in 256K blocks:

Mean Average:

[PBS script for this test] - [Full output from the iozone tests]

Test results using PVFSv2 on the fly filesystem over 1 node,
where the node run data server, metadata server & client.
Filesystem mounted on the ${PBSTMPDIR}/mnt directory. Test data
written to a subdirectory using the "twod_stripe" distribution
using a 1 group with group strip factor 1, writing 64KB "stripe"
with iozone writing 4GB of data from the client in 256K blocks:

Mean Average:

[PBS script for this test] - [Full output from the iozone tests]

Test results using PVFSv2 on the fly filesystem over 1 node,
where the node run data server, metadata server & client.
Filesystem mounted on the ${PBSTMPDIR}/mnt directory. Test data
written to a subdirectory using the "varstrip_dist" distribution
with iozone writing 4GB of data from the client in 256K blocks.
The distribution was configured to write 16K blocks to the node.

Mean Average:

[PBS script for this test] - [Full output from the iozone tests]