@Pete-S said in Geekbench observations:

@dafyre said in Geekbench observations:

@Pete-S said in Geekbench observations:

The relationship between the single-core and multi-core score should be about 80% of theoretical max on the multi-core score.

So if single core score is 3000 and you have 4 vCPUs then multi-core score should be 80% of 3000 x 4 cores = 9600. If the host is under heavy load the multi-core score will go lower and lower.

I think you are on the right track. This is largely in part due to how the underlying Hypervisor handles multi-core VMs. The way I understand it, is that in a multi-core VM, the Hypervisor has to wait for that number of cores to be ready to process before it signals to the VM that it can keep running.

IE: In your example, a 4 core VM, the underlying hypervisor will have to wait to have 4 cores waiting for work before it will tell the VM that it's cores are available.

I've read that before but I think it is some old feature of very old hypervisors called strict co-scheduling. It's not used anymore.

Nowadays basically every hypervisor has their scheduler that puts vCPU on real pCPUs according to the time share principle. So every vCPU get's a piece of the pie. But it has to account for hyperthreading, more than one CPU socket (NUMA), power saving, VM priority and other things. The underlying principle is though that all VMs and their vCPUs should get their fair share of CPU time.

Some hypervisors have different scheduler algorithms so you can pick other ways of scheduling that might be more optimized for your workload.

Depends, SMP doesn't really allow for that, all cores have to be in lock step. Only is AMP is supported can the hypervisor do that. It requires the hypervisor and system above it together to do non-SMP processing.

The only scenarios I've seen are:

PPPoE / DSL Jumbo Frames VPNs

@Pete-S click the menu (three stacked dots) by the post that had the answer so others know which solution worked best for you.

@EddieJennings said in Typical virtualization host server config?:

@Pete-S said in Typical virtualization host server config?:

We've calculated guesstimated 8GB RAM and 50 GB SSD storage per VM on average.

How did you come up with your guesstimate? Do you have some workloads in production right now that you'd be virtualizing with whatever host your configure and buy?

Yes, actually we have the hardware now but it hasn't been configured completely yet. We are still figuring things out.

The workloads are running on physical servers (Windows) and it's latency that is our primary concern, not capacity. We are moving the applications to linux and making them multi-tenant and horizontally scalable at the same time. So that's why we are guesstimating based on the config of the physical servers.

@DustinB3403 said in Openvpn HELPPP!!:

@abdel-hakim-abousrea to start, if you have access to the internet, you have a public IP, it could be a statically assigned IP or one that could change randomly.

Having a static public IP to use for this would be ideal.

Set up a FQDN for your system, even if it is a static IP. Either via some type of dynamic DNS or a manual records in your public DNS.

@dafyre said in Running Xrdp on Ubuntu:

Not sure what to do about the EFI issue....

What I do when I want to use mine like that is set up x11vnc-server and then run it through XRDP (and choose the console option). It's faster than stock VNC... Don't ask me why, lol. I haven't gotten instructions for that yet, I don't think.

If I remember right, after a reboot, you have to connect, close the connection, and then reconnect back using the XRDP+VNC option. I don't have any installation instructions for that setup on hand though. I can work it out and post them if you like.

This is likely where I went 'rouge' in that I didn't use x11vnc-server.. I had notes on that,.. at least I believe and have misplaced them. so I had forget that.

As I was starting to have other 'OS' Kernel issues (the mouse and keyboard wasn't working correctly) I nuked that partition from Windows, and will rebuild. Maybe it'll survive as I am of course getting grub 'errors' since that partition is gone.

@Pete-S It was on linux - ProFTPD

Sounds like a good idea guys. I will do it that way.

@JaredBusch

Good thing you brought this up. I couldn't believe that your recording where ADPCM because in our 3CX we just have PCM recordings.

It turns out that the ADPCM codec for recordings is a completely new feature in 3CX, which arrived in the latest version 15.5

I had to dig around before I could find that setting anywhere. But it's under the recording quota.

IMHO you should have a lot of recordings to enable it in the first place. In just 10GB you have room for 167 hours of non-compressed recordings. But maybe some users have it set up to recording everything on every call and a lot of extensions and small cloud hosted VMs.

3cx_compress_recordings.png

@Obsolesce said in Windows Server 2012 R2 : randomly changes date/time ?:

@WrCombs said in Windows Server 2012 R2 : randomly changes date/time ?:

@Obsolesce said in Windows Server 2012 R2 : randomly changes date/time ?:

@WrCombs said in Windows Server 2012 R2 : randomly changes date/time ?:

@Obsolesce said in Windows Server 2012 R2 : randomly changes date/time ?:

@WrCombs said in Windows Server 2012 R2 : randomly changes date/time ?:

@WrCombs said in Windows Server 2012 R2 : randomly changes date/time ?:

@Obsolesce said in Windows Server 2012 R2 : randomly changes date/time ?:

@WrCombs said in Windows Server 2012 R2 : randomly changes date/time ?:

@Obsolesce said in Windows Server 2012 R2 : randomly changes date/time ?:

@WrCombs said in Windows Server 2012 R2 : randomly changes date/time ?:

@Obsolesce said in Windows Server 2012 R2 : randomly changes date/time ?:

@WrCombs said in Windows Server 2012 R2 : randomly changes date/time ?:

@WrCombs said in Windows Server 2012 R2 : randomly changes date/time ?:

@Obsolesce said in Windows Server 2012 R2 : randomly changes date/time ?:

@WrCombs said in Windows Server 2012 R2 : randomly changes date/time ?:

@DustinB3403 said in Windows Server 2012 R2 : randomly changes date/time ?:

I've seen the time slip, usually caused from a aging bios battery. But where time is jumping all over the place. That's a new one.

after I re synced, It slipped an hour ahead.

Check (as in look at) the timezone and the automatic daylight saving check box

Says eastern time .

wont let me change to Central Standard either

What do you mean it won't let you? Is it grayed out? Is there a link to click in the window to enable changes to be made?

When I change it to CST it says " Your current time zone is not recognized, Please select a valid time zone. "

Try PowerShell:

Set-TimeZone -Name "Central Standard Time"

Or whatever zone you're in and is current.

Powershell blows up

Don't know what that means. Screenshot?

Capture.PNG

even with copy paste it does that
and elevated

What's the result of this:

$PSVersionTable

Capture1.PNG

Oh. That's why. Are you able to install PS v 5.1?

I don't know the CMD.exe way to do it.

Im not sure, Give me a few

I'm sure a reboot would be required somewhere... but if you can, I found this:

https://social.technet.microsoft.com/Forums/ie/en-US/3b13b6a0-ecb2-429d-ad8d-533b7322c7ee/installation-of-powershell-50-on-windows-2012-r2

I did not do this,
I did however set it up to not be accessible from anyone but our Account which is completely locked and no one has the password, to see if the issue goes away.

@scottalanmiller said in DD-WRT:

I use Steam at home to play video games, it's not a business decision.

What if your job is to play video games?

i wanted an easier way to copy files to multiple folders and have the folder hierarchy duplicated within parent folders, in other words I wanted to see more stuff in more places all at once.

Q-Dir works pretty well and it seems to work accurately with Onedrive which is a bonus, not all of them do, actually Q-Dir is the only one I've found that can display Onedrive statuses or statii for files and folders.

I like to know if any other alternatives have the Onedrive status functionality.

@JaredBusch : Funny that you posted that as I actually had to go LOOK UP NANPA when you had mentioned it above and, at first, wondered what it had to do with the Japanese dating scene.. 🙂

@D-GCP said in Turn your Twilio account into a full PBX:

@bigbear said in Turn your Twilio account into a full PBX:

@trustserve said in Turn your Twilio account into a full PBX:

bigbear... i am interested in this. i would love to use just twilio and not have to fiddle with another pbx. open to beta testing or releasing your set up to someone else?

so can my people connect via webrtc? or is this a sip phone only thing?

I have been getting messages about this over the past month out of the blue for some reason.

So out of the box you can register endpoints to Twilio now and use WebRTC

https://www.twilio.com/voice/sip-registration

https://www.twilio.com/webrtc

My idea was to use the serverless code model to create the missing features of a PBX, but I had to slim down a light weight softswitch from other projects to handle presence and to translate DSS/Phone commands to something that could call a Twiml Bin or Twilio API.

The quality and SIP registration leans on Twilio while some things that Twilio doesnt offer leans on a 3rd party app engine instance.

I have thought about developing this further, but it seems trivial for Twilio to add these features themselves. I havent check in on Twilio updates since last year but I thought Studio would obviate the need for some of the things I was doing. I feel like as soon as I made something distributed everyone would find a way to break it or Twilio would release those features.

If you dont need presence or extension transfers from a hard phone Twilio does everything you want out of the box. Complex IVR and transfers down to your SIP phone.

This is something I am interested in. I'm coming from FreePBX and Elastix and really just need some core features to start off like the ones you described and custom build out from there. My goal same as yours eliminate need for a PBX and do everything through Twillio.

I already have SIP registration working on Twilio and calls between endponts. Things that I need are BLF to work which Twillio doesn't support out of the box and I would like transfer, music on hold and voicemail to work. This would be a good start and custom build other things. Is this a project still under development? I would be interested in trying on would host on my own VPS or GCP for testing. Any information would be of help as I'm looking to do something similar regardless. Thanks

Also have you implemented or tested twilio Sim cards? I have active Sims and would like to plug in as an endpoint if it's possible.

You want a PBX without a PBX.

@tonyshowoff said in LAMP on the cheap, or how to optimize ?:

Installing crappy cPanel is like buying a sports car and putting a boot on the wheel. There's literally no good reason what so ever to have it, it's slow as hell and eats resources like crazy. Just learn a few commands and you'll be fine.

Don't get yourself stuck with PHP 5.x, it's a dead end, fix your code now and/or do it right from the start and use PHP 7.

Apache with mod_php is a hell of a lot faster than PHP-FPM, because it's executed as a part of your running httpd thread pool rather than executing PHP literally every single page request. Nginx is faster than Apache except when it comes to PHP then hands down always use Apache with mod_php. If you turn on PHP 7's opcache you'll do even better.

In case you consider it and try to go with nginx, since that's what the cool kids try to push on people, OPcache won't make up for PHP-FPM having to literally start a process every single page request, every, single, page request. Nginx is a great reverse proxy though.

It also depends on what you're doing overall, memcached is great I've used it on a huge scale but what are you caching? What database are you looking at using, that'd really be the only reason to have an object cache like memcached at all.

Interesting, I will see how it performs without PHP FPM.

Weird.. I didn't have to do anything with SELinux to get it working:

https://timothygruber.com/linux/saltstack-installation-configuration/#Installing_the_Salt-Master

Too bad it is KVM only right now. Not that KVM is bad, it's just early. The have LXC coming "soon" and that will be really awesome. I want VDI on LXC so that we can do it faster and on top of Scale HC3.

@scottalanmiller said in Mobile Computing for Medical:

Man that vendor really hates you.

I was going to say the same thing.

The next thing out of this vendor will be that they only support Windows NT . .