I did, it was useless. The other utilities proved to be more useful. There is no CPU throttling being reported anywhere. For some reason, the BD PROCHOT signal is responsible for the throttling.
Ok, so i debugged prime95 parser by adding bogus input in local.txt. It seems that somehow it remembers old state of local.txt even after you correct the error and save the file. The reliable way is to delete local.txt and edit local.txt again.
AVX and no AVX both throttle, and there is not...
I tried Prime95 after adding CpuSupportsAVX=0 in local.txt but it seems there is no difference whether this line exists or not for everything.
Voltage, power and throttling are identical. I think the option does not work, but there is no way to confirm, nothing gets logged by the programme...
The BIOS settings are very limited, the temperature limits are way too comfortable, something like 110 degrees for the voltage regulator etc. There is really nothing relevant I can tweak, remember also that H67 is a locked chipset and 2500 is a locked chip. In theory, I'm not hitting any power...
I know it's ancient history but nonetheless I was debugging my sandy bridge system so here goes. Intel board DH67CL, core i5 2500. I was running linpack with the latest intel burn test utility, and the result is the CPU downclocking from 3.3GHz to 1.6GHz for about half the run duration. Maximum...
Maybe it's just Asrock that has the problem according to this:
http://forum.asrock.com/forum_posts.asp?TID=8333&title=any-word-on-ecc-support-for-raven-ridge
What they're saying the way I read it from their site is that:
1. Pinnacle Ridge supports ECC & non-ECC
2. Summit Ridge supports ECC & non-ECC
3. Raven Ridge supports ECC only for PRO CPUs and non-ECC for the rest
They are saying that the APUs don't support ECC, but the PRO APUs will support...
Some more questions for you guys. I just realized that those extra volts that the motherboard applied on the DRAM are actually overvolting the integrated memory controller of the CPU. Since this guy plans to keep the rig for 10 years I worry about degradation of the CPU. So how do I avoid that...
Thanks for the info, it's true I don't know anything about overclocking. What I have heard though is that if you're running the CPU memory controller out of spec you are actually overclocking the CPU.
So my friend got a Fatal1ty X370 Gaming X motherboard with a Ryzen 7 1700 CPU and 2x8GB RAM kit with DDR4 3000 XMP speed support. I don't remember 100% the actual model, I think it was this one...
Sure, but I'm not very optimistic for 3 reasons.
1. They have been working on those patches for months
2. TLB flushes etc are very expensive hardware operations that cannot be optimized any further
3. Both Windows and Linux suffer and they worked independently.
I said about the overhead of the patch for the Windows 10 I/O path. I never said the overhead is caused by the CPU. I said the increased CPU utilization reduced the SSD performance, which is mostly due to the OS patch and the BIOS update.
But if you want a secure system, you need the patch, so...
Let's say that 4KB random reads QD=1 drop from 50MB/s to 40MB/s.
This means that 1 CPU core went from 78 μsec per I/O request to 97 μsec per I/O request. That is a difference of 19 μsec.
If the total overhead of meltdown patches and BIOS updates for the Windows 10 I/O path is indeed 19 μsec...
I feel like the problem isn't going to be the throughput loss, disk I/O and network I/O could very well not lose performance given enough queue depth.
We may suffer from increased CPU utilization, which most benchmarks will not show.
Every SSD that I know of is 512e. That means, 512-bytes logical sector size, 4KB physical sector size.
VMWare actually needs 512 bytes native sector size for performance reasons. VMWare performs 512-byte write I/O requests and 512e devices are doing a Read-Modify-Write operation, meaning they...
I charge my 3-year-old LG G2 every 3 or 4 days. That's how a phone with a non-removable battery should function. Strong candidate for best phone ever :P
That said, my next phone will have a removable battery no doubt.
If you boot into linux you can issue discard/trim/unmap commands directly to the block device if it's an NVM-E device without having to deal with partitioning/formatting like this:
# blkdiscard /dev/nvme0n1
This will trim all of the address space of the NVM-E SSD which in theory will make the...
Laptops cannot survive 4 days on a single charge, in contrast to phones. It's the exact opposite of what you're saying. Also, calling me uninformed so quickly shows something I guess...
Surely laptops being 60+ Watt devices would have been doing that for decades, right? Li-ion and polymer batteries, same technology really. I'm pretty sure most laptops can survive 12 months on the original battery.
It's pretty clear that this is inexcusable and a design fault, and also an...
I would try ddrescue (https://www.gnu.org/software/ddrescue/manual/ddrescue_manual.html). It's not a user friendly tool but it's very powerful, worth reading the manual to see if you're willing to put up with it. Of course, you'll need some sort of live USB linux distribution to run it.
This update also turns on the hibernation file even if it was off before. For a 16GB RAM system it is a 12GB file. You can turn hibernation off by running powershell as an Administrator and executing the command "powercfg /H off"
Another thing I was excited about was the ability to throttle Windows update. So I go to the "Limit how much bandwidth is used for downloading updates in the background" option and it is percentage based... I try to change is and the minimum is 5%!
So I do a test, and sure enough, this is 5% of...
I had 4 systems that had hibernation OFF. After the install hibernation was ON on all 4. I noticed it cause the 16GB RAM systems had 12GB less free space. Beware of that silent silliness.
I have a 27' 1440p display and I would really appreciate it being sharper. The pixels are too big, small windows lose a lot of detail, nothing like a high ppi laptop.
It sounds ridiculous to hear about crappy 27' 4K displays. If anything, a 27' display should be at least 4K.
By briefly looking at amd community forum, phoronix and reddit it seems that the consensus right now is:
- Phoronix custom test is flawed, it produces segmentation faults on other processors from intel and AMD due to some buggy PHP component
- kill-ryzen.sh is the test to use
- There is no...
Secure erase might help, creating a huge partition from windows and quick formatting it might help. I would boot from linux and run blkdiscard on it. (http://man7.org/linux/man-pages/man8/blkdiscard.8.html)
Edit:
Obviously you need to do all that from a modern enough PC whose SATA controller...
It doesn't sound like a scaling problem to me, sounds like multi-tasking. If encoding and gaming can be indeed considered independent tasks, then having many cores always helps, since multi-tasking is an embarrassingly parallel problem that always scales well.
This scenario also fits with the...
There are some applications, such as games, that are latency sensitive. If a game effectively uses more threads than the cores available then the OS needs to schedule how the threads are run, and assign time slices.
The scheduling can be very bad, up to 10 milliseconds of extra latency. There...
About RAM speeds though, we should be reminded that AMD had pretty poor performance with faster RAM cause intel had better memory controllers:
https://www.overclock3d.net/reviews/cpu_mainboard/amd_vishera_fx8350_piledriver_review/4
I also remember that piledriver had pretty bad cache...
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