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trparky
Apple... YUM
Premium,MVM
join:2000-05-24
Cleveland, OH
kudos:2
reply to trparky

Re: [WIN7] Recommended SSD System Tweaks?

Why I ask all of these questions is because my system is acting really weird as of late.

As you might know, a system with an SSD should simply fly. Right? Click on an icon to launch a program and it should have it loaded... like yesterday. But I'm seeing some huge issues with my system here.

When I boot my system it's fast. Everything seems fast. Use the computer for some time, say like for six hours, and you can see the system gradually get slower. Programs take longer to launch, right-click gets slower, etc. Hell, even the mouse starts to seem like it's asleep at the wheel in the sense that if you move the mouse the cursor doesn't always respond.

I have no idea why this is so. I can't pinpoint where the problem is. I've been doing troubleshooting for almost two weeks now and have come up completely empty-handed.

A system with a Core i7, 12 GBs of RAM, and an Intel 520 Series 240 GB SSD should not be having these issues.
--
Tom
Boycott AT&T uVerse! | Tom's Android Blog | AOKP (The Android Open Kang Project)


dave
Premium,MVM
join:2000-05-04
not in ohio
kudos:8
Reviews:
·Verizon FiOS

said by trparky:

Hell, even the mouse starts to seem like it's asleep at the wheel in the sense that if you move the mouse the cursor doesn't always respond.

Doesn't sound like any sort of a disk issue.

I'd look at CPU load, particularly for interrupt and DPCs (use Performance Monitor.


trparky
Apple... YUM
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join:2000-05-24
Cleveland, OH
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Yeah, I've looked at that too. Very low CPU usage, most of the time it's less than 25% usage across all eight "CPUs".

I know that this machine has DPC Latency issues and I have another thread open in this same forums regarding the issue.

»[WIN7] High DPC Latency with High Network Traffic

But now it seems like it doesn't even need network traffic to have DPC Latency shoot through the roof. NDIS, TCP/IP, and some driver for the nVidia video card seems to be the biggest culprits according to LatencyMon. But, after looking at the other machines in my house with LatencyMon they too have the same latency spikes but they don't seem to be having the same issues that this desktop has.

I'm at a complete loss as to what could be causing these issues. Like I said, I've been troubleshooting this issue for almost two weeks now and I'm no closer to a solution or a reason why this is happening than I was when I started investigating this mess.

Could I be looking at potential hardware failure here? Motherboard? CPU?
--
Tom
Boycott AT&T uVerse! | Tom's Android Blog | AOKP (The Android Open Kang Project)



trparky
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Cleveland, OH
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I'm looking at the Performance Monitor and Interrupts per Second are damn near at the top of the graph in Performance Monitor.



trparky
Apple... YUM
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join:2000-05-24
Cleveland, OH
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It seems that Flash may be connected to the high DPCs and Interrupt Requests per second. That and a dirty video card.



DKS
Damn Kidney Stones
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join:2001-03-22
Owen Sound, ON
kudos:2

said by trparky:

That and a dirty video card.

There are a whole bunch of straight lines that leads to...
--
Need-based health care not greed-based health care.


trparky
Apple... YUM
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join:2000-05-24
Cleveland, OH
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I really need to clean the machine out, dust everywhere. I did clean the video card out and with the first pull of the trigger on the can of compressed air and large cloud of dust came out. I need to do the same to the CPU as well since I can see a layer of dust on one of the heat fin assemblies.

I still say that Flash is awful pig that needs to be put down.
--
Tom
Boycott AT&T uVerse! | Tom's Android Blog | AOKP (The Android Open Kang Project)



trparky
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Cleveland, OH
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The processing latency issue comes and goes. I can't seem to find a connection between the issues.

As of right now, Interrupts per Second according to Performance Monitor is nearly 10 Million but it's not effecting the performance of the machine. It's as fast as it should be.

It could be fine for several hours and then suddenly start running horribly. I can't seem to find a reason for the issues that I'm having.
--
Tom
Boycott AT&T uVerse! | Tom's Android Blog | AOKP (The Android Open Kang Project)


dave
Premium,MVM
join:2000-05-04
not in ohio
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Reviews:
·Verizon FiOS

10 million interrupts per second seems like a hell of a lot. If it takes of the order of a few hundred instructions to service an interrupt, that's more than one CPU core's worth.

Are you sure you read that right?

My admittedly fairly idle system is taking around 6 or 7 hundred interrupts/sec.



trparky
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join:2000-05-24
Cleveland, OH
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said by dave:

10 million interrupts per second seems like a hell of a lot. If it takes of the order of a few hundred instructions to service an interrupt, that's more than one CPU core's worth.

Yes, that's across all eight "cores" of the Core i7 CPU.
--
Tom
Boycott AT&T uVerse! | Tom's Android Blog | AOKP (The Android Open Kang Project)

dave
Premium,MVM
join:2000-05-04
not in ohio
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But my point is that consuming one whole core just for interrupt handling is not normal.

Unless you're servicing a lot of non-DMA devices. (Are USB devices DMA? Dunno)



trparky
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Cleveland, OH
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I only have a Logitech Keyboard & Mouse receiver (one USB device services them both) and a Logitech web cam. Only two USB devices are plugged into the machine at any one time. It's rare, but sometimes I connect my Android phone to the computer but usually only for short periods of time and I disconnect it when I'm finished.

LatencyMon says that some nVidia driver along with the NDIS, TCP/IP, and USBPORT driver are also part of the problem but it changes depending upon the state of the machine. As you can guess, tracking down which driver is causing this issue has been rather difficult.
--
Tom
Boycott AT&T uVerse! | Tom's Android Blog | AOKP (The Android Open Kang Project)



trparky
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Cleveland, OH
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I can't help but to think that somewhere in this system of mine, hardware is failing and that this is a sign of the beginning of the end for it.



trparky
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Cleveland, OH
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Damn it, I solved the problem. Too bad I had to use the "sledge hammer" method to do so. I reformatted my machine and reinstalled from scratch. Guess what? No issues. No DPC Latency spikes according to DPC Latency Checker v1.3.
--
Tom
Boycott AT&T uVerse! | Tom's Android Blog | AOKP (The Android Open Kang Project)


dave
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join:2000-05-04
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Just for comparison, what's the interrupt rate now?



trparky
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Click for full size
Interrupts
Screenshot.


billaustin
they call me Mr. Bill
Premium,MVM
join:2001-10-13
North Las Vegas, NV
kudos:3
reply to trparky

I was reading through the FAQ's on the Intel site yesterday while downloading the firmware update for some 40GB Intel SSDs. Poor performance is one of the times they do recommend a low-level format of the SSD. It may not fix your problem, but is possibly something to look at.



trparky
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Cleveland, OH
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Ok, but here's the problem. It starts out fast, boots up fast, starts up apps fast, generally it's very fast. Then, as the system is used over time the machine gradually slows down to where apps take forever to load relative to how it is when the system first boots. To fix this I'd reboot, reboot and everything gets zippy again. But, wait a couple of hours and it's slow-mo again.

I'm at my wits end here. There is no reason on God's green Earth that a machine of this caliber should be slowing down like this. There just isn't any call for it.
--
Tom
Boycott AT&T uVerse! | Tom's Android Blog | AOKP (The Android Open Kang Project)



trparky
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Cleveland, OH
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If I had a bad SSD, a reboot wouldn't magically solve the issue. It would be slow-mo all the time, not just after awhile of being up without a reboot.



trparky
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Cleveland, OH
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Besides, I have another computer that's also a Core i7 and it's only processing about 2,000 Interrupts/seconds whereas my machine processing nearly 10,000!



billaustin
they call me Mr. Bill
Premium,MVM
join:2001-10-13
North Las Vegas, NV
kudos:3
reply to trparky

It sounds like you have a running program with a memory leak, or similar issue, or a problem with the memory controller on the system board. Check all the fans and make sure it is not getting too hot. Does the problem occur if you just start up the system and let it sit for a few hours without actively using it?

I would start at the lowest level and work your way up. Make sure the system board BIOS is up to date. Reset it to defaults and then make any needed adjustments (AHCI, IDE, etc.).

Update all drivers and software. Make sure you have the latest drivers for the system board chip-set, video card, network, etc.

Load all the Windows updates, including the other programs and optional updates. Update Java, Flash, and Acrobat.

Switch to Firefox as your primary browser. I have not made it the default browser, but have stopped using IE. Issues with slow loading websites has greatly diminished.

I don't have an answer for you, but that is what I would check first.



trparky
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join:2000-05-24
Cleveland, OH
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said by billaustin:

Check all the fans and make sure it is not getting too hot.

All fans are working well, CPU temps fluctuate between 46C and 50C at idle.

said by billaustin:

Does the problem occur if you just start up the system and let it sit for a few hours without actively using it?

Yep, I could let it sit doing nothing after a reboot and the same issue will occur.

said by billaustin:

Make sure the system board BIOS is up to date.

Up-to-date BIOS, at least as up-to-date as it can be. Last BIOS update was from May 11th, 2011.

said by billaustin:

Reset it to defaults and then make any needed adjustments (AHCI, IDE, etc.).

Been there, done that. Multiple times even!

said by billaustin:

Update all drivers and software. Make sure you have the latest drivers for the system board chip-set, video card, network, etc.

I've updated as many drivers as I can update. Some of the hardware in this machine hasn't seen driver updates in well over a year, some even longer.

said by billaustin:

Load all the Windows updates, including the other programs and optional updates. Update Java, Flash, and Acrobat.

Done that.

said by billaustin:

Switch to Firefox as your primary browser.

I use Palemoon 64-bit, which is a Firefox clone.
--
Tom
Boycott AT&T uVerse! | Tom's Android Blog | AOKP (The Android Open Kang Project)


billaustin
they call me Mr. Bill
Premium,MVM
join:2001-10-13
North Las Vegas, NV
kudos:3

Try the standard Firefox and see if it makes any difference. Other than that, use msconfig and review everything that loads in the background.

I would do a low-level format, reload windows and updates, and see if the problem is still there. If so, I would replace the system board. If not, start loading software back one at a time and testing until the problem returns.

Try doing some extensive hardware tests. Use Memtest86 or something similar. If you have the time, and another system to test with, try swapping CPU, RAM, and Video one at a time and see if the problem goes away or follows to the other system.

Did you have this problem before switching to a SSD?

Have you disabled write caching for the drive?



trparky
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join:2000-05-24
Cleveland, OH
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2 edits

So I decided to do something really stupid. I went into MSCONFIG and told it to boot into Diagnostic Startup Mode; the mode that only loads basic devices and services.

So I did that. I rebooted the machine and let it come back up. Launched Performance Monitor and looked at the Interrupts per second. Now they were where they should be, sitting at around 1,000 Interrupts per second. GREAT!

So I told the system to boot normally via MSCONFIG but this time I disabled all services that weren't Microsoft services. Boot the machine back up, great... high Interrupts per Second.

So I decided to disable the nVidia video card drivers and go back to standard VGA drivers. No help there. I reinstalled the nVidia drivers and disabled the network card, rebooted, again... no help there. So I disabled the sound cards and rebooted. YES! Interrupts sitting where they should be! YAY!

So I re-enabled the base system sound card and the USB sound card that is really only the microphone on my Logitech web cam and rebooted the system. Once again, Interrupts sitting where they should be! YAY!

One last driver, the only one that I've not yet enabled. DFX Audio Enhancer. I re-enabled that and rebooted, once again, Interrupts in the sky high range. I disabled it again, rebooted, and once again Interrupts were where they should be.

At this point... the whole problem has been caused by DFX Audio Enhancer. If you don't know what that is, it's a program that installs a virtual sound card and enhances the sound of all system apps and restores certain characteristics that may have been lost in compressed audio such as MP3s and whatnot. Apparently this program in a very damn buggy program (and kernel-mode driver) and that it should be avoided at all costs, that is, if you want your system to run properly.

Now I need to find a suitable replacement program for DFX Audio.
--
Tom
Boycott AT&T uVerse! | Tom's Android Blog | AOKP (The Android Open Kang Project)



trparky
Apple... YUM
Premium,MVM
join:2000-05-24
Cleveland, OH
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And unfortunately, I'm back to the initial problem again. System slowdown after some time of being online after a reboot.

Could be anything at this point. Memory, memory controller, CPU, motherboard, etc. At this point it seems like it would be best to just trash the system and rebuild it.
--
Tom
Boycott AT&T uVerse! | Tom's Android Blog | AOKP (The Android Open Kang Project)