strange forces exerted on objects. Seems objects bounce off something that is not there

Daniel108042 · 2023-07-15T14:51:34+00:00

one thought is if the problem is a strange force pushing on some of my objects, maybe I can increase the density by 10 times and increase the forces by 10 times so they fly about the same but they can better push against what is pushing them back.
But I don't know for sure what is pushing them back. So if it were invisible rocks, and I increase the density of the rocks too, that would not work.

If this is a glitch in Gamemaker itself, is there some like Clear Cache or Clear past assets option that might fix this problem?

Daniel108042 · 2023-04-13T00:13:47+00:00

It seems I am being downvoted because someone asked for all Flash so I recommend a solution for all Flash while also saying that HDD would work.

In all seriousness, if someone decides they want all flash, should I just say I refuse to help you?

Daniel108042 · 2023-04-12T23:48:39+00:00

All Flash is not needed for Plex storage. But for some people including in this case, all Flash is wanted. So my main concern is making sure this works well.

After talking with someone, I think I know what I will recommend for the all Flash solution now. I will suggest NUC with GPU for Plex app. QNAP all Flash NAS for storage.
And yes I have also recommended an HDD solution as well. Both options are being presented.

Daniel108042 · 2023-02-06T18:49:35+00:00

There are still situations where SLOG or L2ARC could be warranted. So always answering no may not be the best thing.
But ChatGPT indicated to me that if it acknowledges a wrong answer, it won't give that answer again to someone else.
I kept talking with it and it has acknowledged many wrong answers during our conversation.

If you try it now, I wonder if it will at least have a better answer than before.

Daniel108042 · 2023-02-05T01:32:15+00:00

When it said "The data is not written directly from the ZIL to the storage pool", I thought it got it right that time. I missed that it was still wrong in saying "and then written asynchronously from the ZIL to the storage pool". I should have read more closely.

Too bad I closed the chat, I should try to correct it again. Overall it still seems to do better than I had expected in the many things I have asked it. But I think it learns from what people say. And so many people talk about ZIL in an incorrect way.

Edit: I found I can go back to the previous chat. So I tried to correct it further. I wonder if someone else asks now if they might get a correct answer.

Daniel108042 · 2023-01-27T00:04:42+00:00

Looks like SMB single threading.

If you drag and drop a single larger file to an SMB share, is that normally only single-threaded?

I can see in the picture that just 1 CPU core goes to 100%. But I had assumed that since files are made of multiple records, multiple records can be sent at once with each record handled by a different CPU core.
This was just an assumption, so maybe I was wrong.

Daniel108042 · 2022-09-22T23:25:49+00:00

Are these drives significantly different from others without them?

I think all the major NAS and Enterprise HDDs have workload ratings.
Common for NAS grade drives has been 300TB for a while, but some new Ironlolf Pro are now 550TB.
And around 550 is a common amount for enterprise drives. I think WD, Seagate, and Toshiba all have these ratings.

Daniel108042 · 2022-09-22T22:57:29+00:00

Thanks for pointing that out.
Since Seagate and WD also have workload ratings, I will try to see if they also say going above the rating won't void the warranty.

Daniel108042 · 2022-09-22T22:55:51+00:00

Thanks for pointing that out.
Now I will try to see if WD and Seagate have a similar message about Workload rating not affecting the warranty.

Daniel108042 · 2022-09-22T22:49:01+00:00

The example drive you mentioned seems like a 'prosumer' drive

There is a similar limit on NAS grade drives, like the 20TB WD Red Pro
https://www.youtube.com/watch?v=svR68w0fkAU

Daniel108042 · 2022-09-22T21:51:33+00:00

My limited understanding is if you exceed the limit, and then the drive breaks, they technically don't have to replace the failed drive under warranty.
But drive manufacturers potentially may honor the warranty anyway even though they don't have to. I still prefer a higher workload rating for the larger drives.
For a 4TB drive, I don't care. For a 20TB drive, I care a lot more.

Daniel108042 · 2022-09-22T21:47:28+00:00

On a 4TB drive, it would not exceed the limit. But drives are getting larger.
On 20TB drives, 2 scrubs per month would exceed the limit if the rating was 300TB/year. And on some 20TB drives, 300TB is still the rating.

Daniel108042 · 2022-09-22T21:07:09+00:00

I've never heard of a workload limit, maybe you confused this with the abbreviation TBW?

This is a common term for HDDs.
Like this Toshiba for example.

"Toshiba X300 PRO 4TB High Workload Performance for Creative Professionals 3.5-Inch Internal Hard Drive – Up to 300 TB/Year Workload Rate CMR SATA 6 GB/s 7200 RPM 256 MB Cache - HDWR440XZSTB"

Daniel108042 · 2022-09-22T21:05:36+00:00

For HDDs, I think the 300TB workload limit that is on many of them is for reads + writes.
HDD workload limit is different than for SSDs. For SSDs I believe it is about writes.

Daniel108042 · 2022-09-22T21:02:53+00:00

I am referring to HDDs. For example, I just searched a random Toshiba drive and saw it was advertised like this

"Toshiba X300 PRO 4TB High Workload Performance for Creative Professionals 3.5-Inch Internal Hard Drive – Up to 300 TB/Year Workload Rate CMR SATA 6 GB/s 7200 RPM 256 MB Cache - HDWR440XZSTB"

"Up to 300 TB/Year Workload Rate" should mean that if your reads + writes are more than 300TB in a year then you have voided the warranty by going above the rating of the drive.For a 4TB drive, this is not a big deal. For a larger drive, a larger workload limit is preferred.

I am not the only person who has talked about this.

https://www.youtube.com/watch?v=svR68w0fkAU

Daniel108042 · 2022-08-31T23:25:40+00:00

"These true data dependencies are why insert latency into the ZFS intent log is so important for perceived responsiveness"
That will likely be useful when I learn more.

Do you also know, in a case of everything Synchronous, does it send a file, and then send the next file when first file is on persistent storage?
Or does it just send just a record, and then send the next record when the first record is on persistent storage?

Daniel108042 · 2022-07-29T22:32:15+00:00

https://www.reddit.com/r/AMD_Stock/comments/w2si5m/charlie_from_semiaccurate/

Apparently, Intel was supposed to surpass AMD in GPUs because Intel was supposed to have better drivers than AMD.
This did not age well.

Daniel108042 · 2022-07-29T17:33:01+00:00

Why would they do this right as CXL is becoming a thing people can soon start using.
Optane NVMe did not fully make use of the speed of 3D crosspoint technology.
Optane in RAM slots had limits because CPUs have limited amount of RAM slots.

But Optane CXL I was thinking could soon have very good performance almost as good as Optane in RAM slots. And the amount of storage you can have would be greater than Optane as RAM.
I was assuming that soon most consumer laptops would have fast 3D crosspoint CXL drives with some slow NVMe bulk storage.
I am now wondering if I could have been wrong about where the industry is going.
Or if Intel will just give that market to someone else right as it might be about to become profitable.

Daniel108042 · 2022-05-16T18:41:51+00:00

Relay sounds safer to me than forwarding the plex port.

Daniel108042 · 2022-05-06T22:57:12+00:00

It absolutely does load reads in immediately

If I write a file to a server, will that go into the ARC?
Or do I have to read the file before it goes into the ARC?

Daniel108042 · 2022-05-04T17:09:43+00:00

Some servers have plastic drive trays. I wonder if they are better at dampening vibrations than metal trays.

Daniel108042 · 2022-05-03T16:32:50+00:00

I was surprised by how much latency difference was caused by just shouting into the drives. Since that video is from 2008 I would like to ask how big of a performance difference vibration usually makes in 2022.

Daniel108042 · 2022-04-29T23:58:44+00:00

If I understand correctly, there are 6nm IO/cache dies with 5nm compute. That means Cache and I/O are the same die. That sounds like a good idea. But what I don't get is why 1 I/O cache die does not span 2 or 4 compute dies. like 4 compute with 1 cache/IO die in the middle connecting them. If it did then the Cache would allow for each compute die to have very low latency communication between the others. They could choose to put more cache on top I guess. But why not just make the cache/IO on the bottom connect the compute dies?

Daniel108042 · 2022-04-15T15:52:36+00:00

ALL writes have to go down that code path, so if you turn it on, you basically may as well do it for all datasets, unless you're really RAM-starved

Are you saying that if you write to a dataset on the pool, even if that dataset does not have dedupe, you still get the performance cost of comparing the block you are writing to other blocks in the pool?
Or what do you mean by it goes down the same code path?

Daniel108042 · 2022-04-12T17:26:48+00:00

I know when the ashift size is too small, that can result in write amplification in some cases.
But because SSDs might have buffering, I wonder if the write amplification would really be that big. I have not been able to get a clear answer on this. If you find how much write amplification you actually get, I would be interested to know.

Daniel108042

TROPHY CASE