Re: [OmniOS-discuss] ZPOOL disk performance on Supermicro with LSI 9300-8i

[Bob Friesenhahn]

On Thu, 23 Jun 2016, Josh Barton wrote:


per drive. Is there any other information I can provide?


What filesystem is being used and exactly how was it configured?  For 
example, if it is zfs, the pool organization and filesystem blocksize 
is very important.


Another important factor is if there is a non-volatile write cache 
(SSD or static RAM cache) involved which dramatically lessens the 
latency for writes.


Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,http://www.GraphicsMagick.org/
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Re: [OmniOS-discuss] ZPOOL disk performance on Supermicro with LSI 9300-8i

[Josh Barton]

HP is running: 151012
Sunfire:151010
Supermicro:151014

Supermicro specs:
___
Item Number   |   Item Type 
   | # of Units|
CSE-216BAC-R920LPB|Chassis  
|
LSI 9300-8i   |Disk Controller  
 |3.00  |
 X10DRi-T4+ |   Motherboard 
 |1.00  |
Micron/Crucial CT16G4RFD4213 |  16 GB Ram| 
12.00   |
Samsung M393A4K40BB0-CPB|  32 GB Ram| 8.00  
|
Seagate ST2000NX0243|  2TB Drive   
|12.00 |
Intel Xeon E5-2637 v3 Quad-core   | 3.5 GHz CPU   | 
2.00  |

The benchmarks shouldn't be CPU bound in the case of the Supermicro. It has 
twice the # of processors of the HP but the HP has 8 cores total in the one 
processor (Xeon E5-2640 @ 2ghz). Postgres prefers higher CPU frequency rather 
than  number of cores. The Sunfire has 48 drives and so writes should be spread 
fairly evenly, reducing writes per drive. Is there any other information I can 
provide? 

Josh  


-Original Message-
From: qutic development [mailto:mailingli...@qutic.com] 
Sent: Thursday, June 23, 2016 6:11 AM
To: Josh Barton <josh.bar...@usurf.usu.edu>
Cc: omnios-discuss <omnios-discuss@lists.omniti.com>
Subject: Re: [OmniOS-discuss] ZPOOL disk performance on Supermicro with LSI 
9300-8i


> Am 23.06.2016 um 01:06 schrieb Josh Barton <josh.bar...@usurf.usu.edu>:
> 
> Any ideas why the HP is so much faster? It just has one Smart Array 
> Controller which I didn’t think would be faster than JBOD

Could you please provide a few more information about the servers? CPU speed, 
cores, RAM, etc?

OmniOS tuned or all raw installations? All the same OmniOS version?

- Stefan
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Re: [OmniOS-discuss] ZPOOL disk performance on Supermicro with LSI 9300-8i

[Stephan Budach]

Am 23.06.16 um 14:10 schrieb qutic development:

Am 23.06.2016 um 01:06 schrieb Josh Barton :

Any ideas why the HP is so much faster? It just has one Smart Array Controller 
which I didn’t think would be faster than JBOD

Could you please provide a few more information about the servers? CPU speed, 
cores, RAM, etc?

OmniOS tuned or all raw installations? All the same OmniOS version?

- Stefan
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Smells like caching on the HP…

You could only compare those results, if you'd stuff your LSIs into the 
HP as well. A magnitude is quite a lot in that regard. Then, what does 
this benchmark actually do? How much of it is CPU bound and how much is 
I/O bound? And I know, that the SmartArray often times has quite an 
amount of RAM cache on board, especially, if you buy one those bigger 
boxes, like a 380.


Cheers,
Stephan
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Re: [OmniOS-discuss] ZPOOL disk performance on Supermicro with LSI 9300-8i

[qutic development]

> Am 23.06.2016 um 01:06 schrieb Josh Barton :
> 
> Any ideas why the HP is so much faster? It just has one Smart Array 
> Controller which I didn’t think would be faster than JBOD

Could you please provide a few more information about the servers? CPU speed, 
cores, RAM, etc?

OmniOS tuned or all raw installations? All the same OmniOS version?

- Stefan
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