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4559
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:
2013 Jul 22
69
[xen-unstable] Commit 2ca9fbd739b8a72b16dd790d0fff7b75f5488fb8 AMD IOMMU: allocate IRTE entries instead of using a static mapping, makes dom0 boot process stall several times.
...7 c=1526 q=67)
[ 308.575461] 2: (1 GPs behind) idle=d1b/1/0 softirq=2276/2277 last_accelerate: 4e3e/0059, nonlazy_posted: 0, L.
[ 308.575473] sending NMI to all CPUs:
[ 308.575477] INFO: rcu_preempt self-detected stall on CPU
[ 308.575483] xen: vector 0x2 is not implemented
[ 308.575490] (t=45594 jiffies g=1527 c=1526 q=67)
[ 308.575494]
[ 308.575507] 3: (1 ticks this GP) idle=9fb/1/0 softirq=1945/1945 last_accelerate: 4e3d/005a, nonlazy_posted: 0, ..
[ 308.575515] (t=45594 jiffies g=1527 c=1526 q=67)
[ 308.672071] 5: (1 ticks this GP) idle=c8b/1/0 softirq=1858/1858 last_accelerate...