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Transfer Speed Throttling (Speeds Faster/Slower/Fluctuation)

post #1 of 4
Thread Starter 
I've noticed many times that when I transfer large files, the transfer speeds slow down over time. This has happened with many computers. Why is this?

For example. I have 2 SSD's in RAID0. SICK. But, It slows down. Speeds will be close to 1 GBps, and slow to 150 MBps over time. My external HDD's even slowed down to 300 kBps over time!!

You can imagine how this sucks. Is there a reasonable explanation for this, or fix?

Thanks in advance.
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Kilo 3.0
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post #2 of 4
Well....what are you writing data to? The Vertex array to a single HDD or HDD to vertex array? What is slowing?
post #3 of 4
Thread Starter 
Vertex to vertex. And external to vertex was the 300 kBps. it's NOT supposed to be that slow.
Kilo 3.0
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Kilo 3.0
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OCZ Vertex 3 Seagate Barricuda Seagate GoFlex WD Passport 
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post #4 of 4
On externals, sometimes the USB plugs come partially lose. I have to straighten mine out and shove on it before using my drive, or it has issues.

The SSD slowdown could be the lack of TRIM. (No TRIM in RAID) If you're a highly active user, the most stuff you do the more fragmented the NAND gets. That slows the drives down. TRIM helps with that, but you can also do a Secure Erase and restore a backup to get around it.
     
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CPUMotherboardGraphicsRAM
FX-8350 @ 4.6ghz 1.425v Sabertooth 990FX Zotac GTX 1070 Amp! 32GB (4x8GB) Kingston Fury 1866mhz CL10 1T 1.5v 
Hard DriveHard DriveHard DriveHard Drive
Hitachi 2TB - HDS723020BLA64 Crucial M500 960GB - CT960M500SSD1 WD 4TB Black - WD4001FAEX WD 4TB Black - WD4001FAEX 
Hard DriveHard DriveHard DriveHard Drive
Seagate 2TB - ST2000DM001 WD 640GB Black - WD6401AALS Seagate 6TB - ST6000DM001 Micron M500 - MTFDDAK480MAV 
Optical DriveOptical DriveOptical DriveOptical Drive
Pioneer DVR-115DBK Samsung SH-S243D/BEBE LG GH22NS90 Lite-On EBAU108 External DVD 
CoolingCoolingCoolingOS
Noctua NH-D15 Fractal Design 140mm Fan - FD-FAN-140 Fractal Design 120mm Fan - FD-FAN-120 Windows 7 
OSMonitorMonitorKeyboard
Ubuntu 14.04 LTS Samsung 2343BWX 23" (2048x1152) BenQ GW2765HT 27" IPS LCD Monitor (2560x1440) Genius Keyboard KB-G235 PA 
PowerCaseMouseMouse Pad
Seasonic Platinum 1000w PSU - SS-1000XP Fractal Design Define R5 Steelseries Rival 6500 dcpi Mousepad + Desk 
AudioAudioOtherOther
Onboard Realtek® ALC 892 Cyber Acoustics CA-2992 2.0 Speakers Razer Krait 1600 DPI nGear G-C1601 Card Reader 
OtherOther
Pisen Card Reader Gigabyte M7 Thor 
CPUMotherboardGraphicsRAM
VIA Eden C7 1200mhz Jetway J7F4K1G2ES-LF VIA Onboard 512MB PC2-4200 
Hard DriveOptical DriveCoolingOS
A-Data FlashDrive None Fanless Linux 
MonitorKeyboardPowerCase
Headless None 65w Power Brick Antec ISK300-65 
MouseAudio
None Onboard VIA 
CPUMotherboardGraphicsRAM
Barton XP-M 2400+ FJQ4C Asus A7N8X-E Deluxe 256MB BFG 7800GS OC 2x512MB Samsung PC3200 
Hard DriveOSMonitorKeyboard
Raptor 74GB/Seagate 120GB Windows 2000 Pro 60hz 17" CRT Brandless PS2 Keyboard 
PowerMouse
Antec Neo HE 550w Logitech G5 
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