Displaying 4 results from an estimated 4 matches for "frewrite".
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2019 Nov 22
2
Potential problem with -Wunreachable-code
Hello, hopefully this is the correct place to ask this...
We use distcc with clang++ and I have recently added -Wunreachable-code
to our set of warnings. The problem I am seeing is the compile fails
with (valid) unreachable code warnings on the slave, but passes (no
warning) locally. All machines have the same compiler version
clang version 8.0.1-svn369350-1~exp1~20190820121219.79
2008 Dec 14
1
Is that iozone result normal?
5-nodes server and 1 node client are connected by gigabits Ethernet.
#] iozone -r 32k -r 512k -s 8G
KB reclen write rewrite read reread read write
read rewrite read fwrite frewrite fread freread
8388608 32 10559 9792 62435 62260
8388608 512 63012 63409 63409 63138
It seems 32k write/rewrite performance are very poor, which is different
from a local file system.
In the local file system, the big difference will only present o...
2013 Feb 27
1
Slow read performance
Help please-
I am running 3.3.1 on Centos using a 10GB network. I get reasonable write speeds, although I think they could be faster. But my read speeds are REALLY slow.
Executive summary:
On gluster client-
Writes average about 700-800MB/s
Reads average about 70-80MB/s
On server-
Writes average about 1-1.5GB/s
Reads average about 2-3GB/s
Any thoughts?
Here are some additional details:
2008 Feb 15
38
Performance with Sun StorageTek 2540
Under Solaris 10 on a 4 core Sun Ultra 40 with 20GB RAM, I am setting
up a Sun StorageTek 2540 with 12 300GB 15K RPM SAS drives and
connected via load-shared 4Gbit FC links. This week I have tried many
different configurations, using firmware managed RAID, ZFS managed
RAID, and with the controller cache enabled or disabled.
My objective is to obtain the best single-file write performance.