NASLite Network Attached Storage

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 Post subject: Performance Monitoring?
PostPosted: Mon Apr 17, 2006 7:43 pm 
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Joined: Thu Apr 06, 2006 5:56 pm
Posts: 82
Is there any way to monitor CPU utilization, memory utilization, network traffic and/or disk IO rate on a real time, or near real time basis? I am looking for a way to monitor the performance of my system to determine where the bottlenecks are. So far I have not been able to gleen much from the HTML pages that are exported.

Thanks.


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 Post subject:
PostPosted: Tue Apr 18, 2006 3:21 pm 
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Joined: Sun Apr 02, 2006 9:05 pm
Posts: 1688
Location: Up State NY in the USA!!!!
It's simple, If you're running on 100Mb then that is your limiting factor to transfer rates. Maybe the drive as well on really fragmented info. If you're running 1Gb then the drives and interface are very likely the bottleneck.

Just take a look at the specs on boxes like those from Network Appliance, very light duty hardware for what they do. The older box I played with had only a P150 (Non MMX) and off of the RAID controlers it could saturate a couple of 100Mb network ports easy.

Besides, there is no tunning on NAS Lite.

Mike


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 Post subject:
PostPosted: Tue Apr 18, 2006 7:14 pm 
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Joined: Thu Apr 06, 2006 5:56 pm
Posts: 82
Mike,

Thanks for the info, I sort of figured that was the case. I really would like to find out a little bit about what is happening under the covers since my performance drops off drastically when I have two simultaneous transfers in progress. With one transfer at a time I max out my 100 mbps connection (at about 80 mbps). With two transfers going on at the same time the transfer rate drops to about 10 mbps per transfer. Something is wrong and I suspect it is my 800 MHz VIA Samuel 2




Operating System

Linux 2.4.27.NASLite #5 Wed Oct 12 06:10:14 UTC 2005 i686


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Uptime
23:05:01 up 2 days, 6:58, load average: 0.40, 0.10, 0.03


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Processor (CPU)
vendor_id : CentaurHauls
model name : VIA Samuel 2
cpu MHz : 796.455
cache size : 64 KB
bogomips : 1589.24


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Memory
total used free shared buffers
Mem: 256664 252640 4024 0 6308


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Disks
Filesystem Size Used Available Use% Device
System 7.7M 3.7M 4.0M 48% RAM Disk
Storage Area 150.3G 24.8G 125.5G 17% NAS Disk-1
Storage Area 146.7G 145.9G 800.1M 99% NAS Disk-3
Storage Area 146.7G 75.2G 71.5G 51% NAS Disk-4


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Network Interface
Realtek RTL8201 PHY transceiver found at address 1.
Using transceiver found at address 1 as default
SiS 900 PCI Fast Ethernet at 0xd400, IRQ 10, 00:0d:87:69:eb:9b.
Media Link On 100mbps full-duplex
Link encap:Ethernet HWaddr 00:0D:87:69:EB:9B
inet addr:192.168.0.251 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:79478803 errors:0 dropped:0 overruns:0 frame:0
TX packets:85394601 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1681081553 (1.5 GiB) TX bytes:948165802 (904.2 MiB)
Interrupt:10 Base address:0xd400



--------------------------------------------------------------------------------

NASLite - © 2005 Tony Z. Tonchev (tzt@serverelements.com)
content updated every 5 minutes


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 Post subject:
PostPosted: Sat Apr 22, 2006 6:33 pm 
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Joined: Sun Apr 02, 2006 9:05 pm
Posts: 1688
Location: Up State NY in the USA!!!!
It's the harddrive, not your processor or board per say. It is that the heads are all over the platters and the ATA drives are not that fast on IOs per second. There is your limiting factor. If you had a RAID drive then it would not nearly be so slow. Until 2.0 comes out that is just the nature of the beast I'm sorry to say.

Mike


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