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rsethc

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About rsethc

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  1. What I'm wondering about in terms of the "how do they work" part is more like: how do they access memory (do they have onboard memory too?), and how does the OS become aware of those cores? If everything has to go over PCIe routing, is it only certain motherboards that support them (like you'd have to have a certain chipset, such that those mining boards won't work)? Or is it something the OS has to have had support implemented for, or is it a driver...?
  2. I don't know any in-depth details about how Xeon Phi's work but my basic understanding is that they behave like normal CPUs that you can add via PCIe add-in cards. Today I wondered about two things: If you bought a mining motherboard (you know, one of those that has like 20 PCIe slots), and enough Xeon Phi cards to completely populate it, would it work at all? And if it did work, and you ran some synthetic CPU benchmarks and productivity workloads on it (I would expect gaming to completely suck), how would it compare to just a single 64-core Threadripper? Or if anyone wants to chip in w/ an explanation of just how those cards worked in general, that would be pretty cool to know as well.
  3. What about just caching the files on the editors' machines? Instead of having the cache be in a centralized location, each workstation would have its own cache and you would also have less network traffic. I am not sure if Windows supports this but there may be some third party software to do it. The idea would be that when you attempt to open a file in the cache directory, if it does not exist (or there is a mismatch of last-modified time stamp) then Windows (or whatever third party software) would stream in the file, in its entirety or maybe in certain sized chunks, to the cache, and meanwhile also serve it to the file handle that is trying to read. As for the "in its entirety" / "chunks" this would mean that there would not have to be an explicit request by the application to read a small region, in order to go ahead and also load what is likely to be read next anyway since it's nearby the requested region. Although I'm not sure if Windows / certain file APIs used by the application already try to pre-load more data themselves and buffer it in memory.
  4. By the way here are the mounting options (they used to work fine before this, but I thought I might as well post them).
  5. Now I have a much larger concern. After reinstalling Samba from the repositories like a normal person, I am unable to mount one of my disks... what the heck could this mean?
  6. I'll leave the compiled-from-source stuff alone for now. I tried that command (sudo update-rc.d samba defaults) and did not see any output (not sure what it does anyway), opened up Synaptic and reinstalled the samba packages. The version of all of them appears to be "2:4.3.11+dfsg+0ubuntu0.16.04.12".
  7. I have an ancient machine I use as a NAS, with some various old hard drives in it and a Pentium 4 CPU. It's got a 100-mbit NIC onboard, so network file transfers are of course significantly slower than file transfers to the rest of my old network (I have three other machines I use as NAS, each of which has a Gigabit NIC.). I also had a bunch of old ethernet NICs sitting around, salvaged from other old computers. So, very recently it occurred to me that maybe I could speed up file transfers in some situations by adding some of those NICs to the ancient server. Currently, the server has two 100-Mbit NICs in it: one is integrated into the motherboard, and the other is in a PCI slot. The server runs Ubuntu 16.04.3, and I've been using the Samba version from the Ubuntu repositories. At first, I tried to set up NIC teaming but that didn't go so well (and, since I manage the server remotely, screwing up the network configuration means having to go attach a keyboard, mouse, and monitor) but I found out that Windows 10 (and Server 2012) are capable of a technology called SMB Multichannel which will make use of multiple NICs by splitting communications across multiple connections. Samba supports this feature now, but the version in Ubuntu repositories is older than the first versions where this feature was implemented. By the way, I took a look at FreeNAS but it is nowadays only for 64-bit processor systems and requires much more performance and memory than this machine has. No dice. So, I went and grabbed the latest stable Samba source, compiled it, cd'ed to the extracted location, and ran: sudo ./configure over and over and over again until I resolved every obstacle I ran into by installing whatever package it complained about, sudo make and then finally sudo make install But I have no idea how to do the final thing: installing the freshly compiled Samba as a (systemd?) service so that it will run at all times, and I can use it normally. Basically, I need help figuring out how to do the same thing the package manager would do automatically.
  8. cfosSpeed works fine for me in Windows 10 as it had in Windows 7, but I had to uninstall and reinstall the program at several times: when upgrading from Windows 7 to Windows 10 it got broken and I had to reinstall, and then this also happened with major Windows updates too. I suspect it has something to do with the updates breaking drivers the program installs to intercept network traffic.
  9. The results are consistent between both so I don't think it's an issue much farther out than my local dealings with the ISP.
  10. Alright, I power-cycled my modem by unplugging not only its power cable but also the coax cable, and made sure to leave it off for a generous 20 seconds. No dice, I did another speed test and everything is the same as before I did that.
  11. Actually I unplugged the modem accidentally while I was setting the new router up, but the coax cable was plugged in the whole time. I might as well try disconnecting everything from it if the cable itself can provide power. 10 seconds fully disconnected from power & coax should be good, I assume.
  12. The QoS features were already disabled, though.
  13. Did a speed test with the program uninstalled and as I had expected there was no difference. It wouldn't have made sense for the program to have been the cause of the issue anyway though, since my upload speed had *dropped* between routers at first, from 6 Mb/s to 1.5-2 Mb/s, without any change to the program (though, for the sake of not ruling anything out I have to admit that perhaps it would be possible for the program to detect a hardware change and change its behavior as a result, but I highly doubt that was what happened).
  14. Haven't tested wired connection with my laptop yet. I am uninstalling the network manager just to see if it changes anything but I doubt that will help. cfosSpeed is pretty good actually, has done a great job for me in the past. It's definitely not a scam, but I haven't paid for it as it came as a sort of indefinite free trial with the purchase of my motherboard. Unfortunately if I want updates then I do have to actually buy it. I will do another speed test shortly with this program uninstalled, and if I get dramatically better results then it may be that the program needs to un-learn its previous limits.
  15. That doesn't change anything.
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