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Posted to user@guacamole.apache.org by Jason Keltz <ja...@eecs.yorku.ca> on 2020/04/04 14:50:20 UTC
hardware requirements for Guacamole
Hi.
The other day, I asked a question about load balancing on Guacamole.
Nick provided useful information in that respect. Thanks again Nick!
On the other hand, I'd like to get some idea of how many desktop
connections a single Guacamole server could handle. There's really very
little information about that online (that I can find). I understand
that different users will all do different activities (text editing
versus YouTube steaming), and that's going to have an impact on the
numbers, but really, I'm just looking for averages. I saw one single
mention online to this: 1 core and 2G of memory for 25 users. If that's
correct, that's really amazing! Although, I didn't see any mention of
the network requirements. I'd like to build a server capable of
handling 150-300 simultaneous desktop connections. If I could do it
with one server, it would be great. Sure, I can load it with dual Xeon
processors, and gigabytes of memory, but how much network do I need? Is
1 x 10G enough? and will it really be able to handle the average load?
Thanks for any feedback you can provide. You'll be helping me, but
you'll also be helping others who are trying to search online for the
limitations of Guacamole.
Jason.
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RE: hardware requirements for Guacamole
Posted by "Newman, Dennis" <de...@spglobal.com>.
Ivan,
Thank you for that – it is very helpful.
For those collecting info –
We are running our Guacamole system on a two server
VMware ESXi, 6.7.0 setup.
Server 1 is an HP ProLiant DL380 G7
with Dual Intel(R) Xeon(R) CPU E5620 @ 2.40GHz
and 140 Gigs of Ram - which hosts 47 Virtual systems
1 - production web server
1- Guacamole Server - running on a CentOs7
Set with
8 virtual CPU
16 gig Memory
a 100 gig Hard disk
and 1 virtual Nic
40 virtual windows 7 desktops being connected through Guac RDP
Server 2 is an HP ProLiant DL360 Gen10
With Dual Intel(R) Xeon(R) Gold 5218 CPU @ 2.30GHz
and 580 gigs of Ram currently hosting 65 Virtual systems
1 Development Sql server and
64 virtual windows 7 desktops being connected through Guac RDP
We have also added 75 new Guacamole RDP to Physical desktops (mostly Windows 10) since Work From Home began.
ESXI Hosts are using about 20% of theis CPU resources
We are sitting at about 50% host memory usage
My Guacamole system averages about 30% memory and cpu usage to allocation
We have seen a few more of our international users complain about system speed and Guacamole connection instability since moving from our offices to their homes, but I feel most of that is due to their home internet connections being slower than their office ones were.
We have also been asked to start adding between 50 and 100 new Virtual Windows 7 users to our system over the next three months. We are confident that we can manage this primarily on Server #2
From: ivanmarcus <iv...@yahoo.com.INVALID>
Sent: Sunday, April 5, 2020 7:05 PM
To: user@guacamole.apache.org; Jason Keltz <ja...@eecs.yorku.ca>
Subject: Re: hardware requirements for Guacamole
I mentioned before that I'd see if I could separate the Guacmaole traffic from the rest of the network, and post the results.
Here's a 1-hr plot of Guacamole only traffic for ~85 users at a reasonably busy part of the day. Also included a snapshot showing some detail on the server load, CPU & memory usage etc.
What you see is fairly typical, as previously described, as I type this the 1-h server load average is somewhat less (1.8), instantaneous load is 1.5 and 1h average traffic is also down - but it could be the other way at any one time.
FWIW this is a VM running on an i7 host with 16 cores/64GB of which 6 cores/16GB are allocated to this VM. Ubuntu 18.04 on host and guest, host has a number of other VM's running under Vbox. I deliberately over-spec'd the Guacamole VM resource because it's presently mission critical to this client and I didn't want anything to get in its way.
It may also be worth commenting that while some people might cringe at using Vbox I've found it to be very reliable and used it for this situation because others may need to do something on it occasionally and it's user interface is fairly simple. Uptime for the previous Guacamole VM (and host) was approx 18months, this system was new, in reaction to the rapidly escalating need to have the entire company working remotely, hence the low current uptime.
Thus from my experience I'd suggest that Mike's simple rule of thumb seems pretty good, and that for 300 users if I were to allocate 12 cores/24GB I'd expect it to work reasonably well. At that number of users I might consider a standalone box with similar specs to my present host (perhaps just 32GB RAM) which would nicely give it some extra headroom.
On 5/04/2020 12:58 p.m., Jason Keltz wrote:
Thanks Chris, and Ivan,
So far, it seems that the load requirements are surprisingly fairly minimal. The type of standalone server that I'm looking at getting for this task would be more than enough to handle this load.
That being said, if anyone else has specs on their systems with even larger numbers of users, please keep them coming. It's very interesting to me.
Jason.
On 4/4/2020 6:43 PM, ivanmarcus wrote:
I expect like many of us who administer systems I've gone from having a handful of remote users (across several different companies) to a much larger number in a matter of days. Just to add to the general body of knowledge I cite one example here 'cos I've kept a particular eye on it.
With approx 80-85 users, of which circa 35 or a little more are doing intensive CAD type work and the rest a mix of documents incl PDF images, the average bandwidth when busy has been less than 20Mb/s, server load is typically in the range 1.5-2 (6 cores allocated) and memory use up to 8GB (incl OS) out of 12GB allocated. Very rarely server load will get a little beyond 3, and bandwith will burst to 100Mb/s.
I'm not collecting stats directly from the various Guacamole VM's I've got running (I guess I could, but am reluctant to mess with them much at this time), but attach a 1-day plot of network traffic from one site here. Bear in mind this will also include outgoing traffic from the various machines, and a busy mailserver, not just Guacamole <-> remote.
I'm not sure but I may be able to separate the Guacamole server traffic out from the rest and plot that, will look at it next week and if so I'll provide that detail FYI.
On 5/04/2020 3:27 a.m., Chris Misztur wrote:
Hey Jason, yeah compute requirements are fairly low. As far as network, 20 RDP users for me have been under 1Mbit outbound total. There are bursts. if user starts watching YouTube on their remote session then it jumps to 7Mbits for that session.
Had same experience running on a RaspberryPi 4. However, lag was present. Compute and network was fine so I’m not sure why. Video core?
Chris
On Apr 4, 2020, at 9:50 AM, Jason Keltz <ja...@eecs.yorku.ca> wrote:
Hi.
The other day, I asked a question about load balancing on Guacamole. Nick provided useful information in that respect. Thanks again Nick! On the other hand, I'd like to get some idea of how many desktop connections a single Guacamole server could handle. There's really very little information about that online (that I can find). I understand that different users will all do different activities (text editing versus YouTube steaming), and that's going to have an impact on the numbers, but really, I'm just looking for averages. I saw one single mention online to this: 1 core and 2G of memory for 25 users. If that's correct, that's really amazing! Although, I didn't see any mention of the network requirements. I'd like to build a server capable of handling 150-300 simultaneous desktop connections. If I could do it with one server, it would be great. Sure, I can load it with dual Xeon processors, and gigabytes of memory, but how much network do I need? Is 1 x 10G enough? and will it really be able to handle the average load?
Thanks for any feedback you can provide. You'll be helping me, but you'll also be helping others who are trying to search online for the limitations of Guacamole.
Jason.
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Re: hardware requirements for Guacamole
Posted by ivanmarcus <iv...@yahoo.com.INVALID>.
I mentioned before that I'd see if I could separate the Guacmaole
traffic from the rest of the network, and post the results.
Here's a 1-hr plot of Guacamole only traffic for ~85 users at a
reasonably busy part of the day. Also included a snapshot showing some
detail on the server load, CPU & memory usage etc.
What you see is fairly typical, as previously described, as I type this
the 1-h server load average is somewhat less (1.8), instantaneous load
is 1.5 and 1h average traffic is also down - but it could be the other
way at any one time.
FWIW this is a VM running on an i7 host with 16 cores/64GB of which 6
cores/16GB are allocated to this VM. Ubuntu 18.04 on host and guest,
host has a number of other VM's running under Vbox. I deliberately
over-spec'd the Guacamole VM resource because it's presently mission
critical to this client and I didn't want anything to get in its way.
It may also be worth commenting that while some people might cringe at
using Vbox I've found it to be very reliable and used it for this
situation because others may need to do something on it occasionally and
it's user interface is fairly simple. Uptime for the previous Guacamole
VM (and host) was approx 18months, this system was new, in reaction to
the rapidly escalating need to have the entire company working remotely,
hence the low current uptime.
Thus from my experience I'd suggest that Mike's simple rule of thumb
seems pretty good, and that for 300 users if I were to allocate 12
cores/24GB I'd expect it to work reasonably well. At that number of
users I might consider a standalone box with similar specs to my present
host (perhaps just 32GB RAM) which would nicely give it some extra headroom.
On 5/04/2020 12:58 p.m., Jason Keltz wrote:
>
> Thanks Chris, and Ivan,
>
> So far, it seems that the load requirements are surprisingly fairly
> minimal. The type of standalone server that I'm looking at getting
> for this task would be more than enough to handle this load.
>
> That being said, if anyone else has specs on their systems with even
> larger numbers of users, please keep them coming. It's very
> interesting to me.
>
> Jason.
>
> On 4/4/2020 6:43 PM, ivanmarcus wrote:
>
>> I expect like many of us who administer systems I've gone from having
>> a handful of remote users (across several different companies) to a
>> much larger number in a matter of days. Just to add to the general
>> body of knowledge I cite one example here 'cos I've kept a particular
>> eye on it.
>>
>> With approx 80-85 users, of which circa 35 or a little more are doing
>> intensive CAD type work and the rest a mix of documents incl PDF
>> images, the average bandwidth when busy has been less than 20Mb/s,
>> server load is typically in the range 1.5-2 (6 cores allocated) and
>> memory use up to 8GB (incl OS) out of 12GB allocated. Very rarely
>> server load will get a little beyond 3, and bandwith will burst to
>> 100Mb/s.
>>
>> I'm not collecting stats directly from the various Guacamole VM's
>> I've got running (I guess I could, but am reluctant to mess with them
>> much at this time), but attach a 1-day plot of network traffic from
>> one site here. Bear in mind this will also include outgoing traffic
>> from the various machines, and a busy mailserver, not just Guacamole
>> <-> remote.
>>
>> I'm not sure but I may be able to separate the Guacamole server
>> traffic out from the rest and plot that, will look at it next week
>> and if so I'll provide that detail FYI.
>>
>>
>> On 5/04/2020 3:27 a.m., Chris Misztur wrote:
>>> Hey Jason, yeah compute requirements are fairly low. As far as
>>> network, 20 RDP users for me have been under 1Mbit outbound total.
>>> There are bursts. if user starts watching YouTube on their remote
>>> session then it jumps to 7Mbits for that session.
>>>
>>> Had same experience running on a RaspberryPi 4. However, lag was
>>> present. Compute and network was fine so I’m not sure why. Video core?
>>>
>>>
>>> Chris
>>>
>>>
>>>
>>>> On Apr 4, 2020, at 9:50 AM, Jason Keltz <ja...@eecs.yorku.ca> wrote:
>>>>
>>>> Hi.
>>>>
>>>> The other day, I asked a question about load balancing on
>>>> Guacamole. Nick provided useful information in that respect.
>>>> Thanks again Nick! On the other hand, I'd like to get some idea
>>>> of how many desktop connections a single Guacamole server could
>>>> handle. There's really very little information about that online
>>>> (that I can find). I understand that different users will all do
>>>> different activities (text editing versus YouTube steaming), and
>>>> that's going to have an impact on the numbers, but really, I'm just
>>>> looking for averages. I saw one single mention online to this: 1
>>>> core and 2G of memory for 25 users. If that's correct, that's
>>>> really amazing! Although, I didn't see any mention of the network
>>>> requirements. I'd like to build a server capable of handling
>>>> 150-300 simultaneous desktop connections. If I could do it with
>>>> one server, it would be great. Sure, I can load it with dual Xeon
>>>> processors, and gigabytes of memory, but how much network do I
>>>> need? Is 1 x 10G enough? and will it really be able to handle the
>>>> average load?
>>>>
>>>> Thanks for any feedback you can provide. You'll be helping me, but
>>>> you'll also be helping others who are trying to search online for
>>>> the limitations of Guacamole.
>>>>
>>>> Jason.
>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: user-unsubscribe@guacamole.apache.org
>>>> For additional commands, e-mail: user-help@guacamole.apache.org
>>>>
>>
Re: hardware requirements for Guacamole
Posted by Jason Keltz <ja...@eecs.yorku.ca>.
Thanks Chris, and Ivan,
So far, it seems that the load requirements are surprisingly fairly
minimal. The type of standalone server that I'm looking at getting for
this task would be more than enough to handle this load.
That being said, if anyone else has specs on their systems with even
larger numbers of users, please keep them coming. It's very interesting
to me.
Jason.
On 4/4/2020 6:43 PM, ivanmarcus wrote:
> I expect like many of us who administer systems I've gone from having
> a handful of remote users (across several different companies) to a
> much larger number in a matter of days. Just to add to the general
> body of knowledge I cite one example here 'cos I've kept a particular
> eye on it.
>
> With approx 80-85 users, of which circa 35 or a little more are doing
> intensive CAD type work and the rest a mix of documents incl PDF
> images, the average bandwidth when busy has been less than 20Mb/s,
> server load is typically in the range 1.5-2 (6 cores allocated) and
> memory use up to 8GB (incl OS) out of 12GB allocated. Very rarely
> server load will get a little beyond 3, and bandwith will burst to
> 100Mb/s.
>
> I'm not collecting stats directly from the various Guacamole VM's I've
> got running (I guess I could, but am reluctant to mess with them much
> at this time), but attach a 1-day plot of network traffic from one
> site here. Bear in mind this will also include outgoing traffic from
> the various machines, and a busy mailserver, not just Guacamole <->
> remote.
>
> I'm not sure but I may be able to separate the Guacamole server
> traffic out from the rest and plot that, will look at it next week and
> if so I'll provide that detail FYI.
>
>
> On 5/04/2020 3:27 a.m., Chris Misztur wrote:
>> Hey Jason, yeah compute requirements are fairly low. As far as
>> network, 20 RDP users for me have been under 1Mbit outbound total.
>> There are bursts. if user starts watching YouTube on their remote
>> session then it jumps to 7Mbits for that session.
>>
>> Had same experience running on a RaspberryPi 4. However, lag was
>> present. Compute and network was fine so I’m not sure why. Video core?
>>
>>
>> Chris
>>
>>
>>
>>> On Apr 4, 2020, at 9:50 AM, Jason Keltz <ja...@eecs.yorku.ca> wrote:
>>>
>>> Hi.
>>>
>>> The other day, I asked a question about load balancing on
>>> Guacamole. Nick provided useful information in that respect. Thanks
>>> again Nick! On the other hand, I'd like to get some idea of how
>>> many desktop connections a single Guacamole server could handle.
>>> There's really very little information about that online (that I can
>>> find). I understand that different users will all do different
>>> activities (text editing versus YouTube steaming), and that's going
>>> to have an impact on the numbers, but really, I'm just looking for
>>> averages. I saw one single mention online to this: 1 core and 2G of
>>> memory for 25 users. If that's correct, that's really amazing!
>>> Although, I didn't see any mention of the network requirements. I'd
>>> like to build a server capable of handling 150-300 simultaneous
>>> desktop connections. If I could do it with one server, it would be
>>> great. Sure, I can load it with dual Xeon processors, and gigabytes
>>> of memory, but how much network do I need? Is 1 x 10G enough? and
>>> will it really be able to handle the average load?
>>>
>>> Thanks for any feedback you can provide. You'll be helping me, but
>>> you'll also be helping others who are trying to search online for
>>> the limitations of Guacamole.
>>>
>>> Jason.
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: user-unsubscribe@guacamole.apache.org
>>> For additional commands, e-mail: user-help@guacamole.apache.org
>>>
>
Re: hardware requirements for Guacamole
Posted by ivanmarcus <iv...@yahoo.com.INVALID>.
I expect like many of us who administer systems I've gone from having a
handful of remote users (across several different companies) to a much
larger number in a matter of days. Just to add to the general body of
knowledge I cite one example here 'cos I've kept a particular eye on it.
With approx 80-85 users, of which circa 35 or a little more are doing
intensive CAD type work and the rest a mix of documents incl PDF images,
the average bandwidth when busy has been less than 20Mb/s, server load
is typically in the range 1.5-2 (6 cores allocated) and memory use up to
8GB (incl OS) out of 12GB allocated. Very rarely server load will get a
little beyond 3, and bandwith will burst to 100Mb/s.
I'm not collecting stats directly from the various Guacamole VM's I've
got running (I guess I could, but am reluctant to mess with them much at
this time), but attach a 1-day plot of network traffic from one site
here. Bear in mind this will also include outgoing traffic from the
various machines, and a busy mailserver, not just Guacamole <-> remote.
I'm not sure but I may be able to separate the Guacamole server traffic
out from the rest and plot that, will look at it next week and if so
I'll provide that detail FYI.
On 5/04/2020 3:27 a.m., Chris Misztur wrote:
> Hey Jason, yeah compute requirements are fairly low. As far as
> network, 20 RDP users for me have been under 1Mbit outbound total.
> There are bursts. if user starts watching YouTube on their remote
> session then it jumps to 7Mbits for that session.
>
> Had same experience running on a RaspberryPi 4. However, lag was
> present. Compute and network was fine so I’m not sure why. Video core?
>
>
> Chris
>
>
>
>> On Apr 4, 2020, at 9:50 AM, Jason Keltz <ja...@eecs.yorku.ca> wrote:
>>
>> Hi.
>>
>> The other day, I asked a question about load balancing on Guacamole.
>> Nick provided useful information in that respect. Thanks again Nick!
>> On the other hand, I'd like to get some idea of how many desktop
>> connections a single Guacamole server could handle. There's really
>> very little information about that online (that I can find). I
>> understand that different users will all do different activities
>> (text editing versus YouTube steaming), and that's going to have an
>> impact on the numbers, but really, I'm just looking for averages. I
>> saw one single mention online to this: 1 core and 2G of memory for 25
>> users. If that's correct, that's really amazing! Although, I
>> didn't see any mention of the network requirements. I'd like to
>> build a server capable of handling 150-300 simultaneous desktop
>> connections. If I could do it with one server, it would be great.
>> Sure, I can load it with dual Xeon processors, and gigabytes of
>> memory, but how much network do I need? Is 1 x 10G enough? and will
>> it really be able to handle the average load?
>>
>> Thanks for any feedback you can provide. You'll be helping me, but
>> you'll also be helping others who are trying to search online for the
>> limitations of Guacamole.
>>
>> Jason.
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@guacamole.apache.org
>> For additional commands, e-mail: user-help@guacamole.apache.org
>>
Re: hardware requirements for Guacamole
Posted by Chris Misztur <cm...@mriiot.com>.
Hey Jason, yeah compute requirements are fairly low. As far as network, 20 RDP users for me have been under 1Mbit outbound total. There are bursts. if user starts watching YouTube on their remote session then it jumps to 7Mbits for that session.
Had same experience running on a RaspberryPi 4. However, lag was present. Compute and network was fine so I’m not sure why. Video core?
Chris
> On Apr 4, 2020, at 9:50 AM, Jason Keltz <ja...@eecs.yorku.ca> wrote:
>
> Hi.
>
> The other day, I asked a question about load balancing on Guacamole. Nick provided useful information in that respect. Thanks again Nick! On the other hand, I'd like to get some idea of how many desktop connections a single Guacamole server could handle. There's really very little information about that online (that I can find). I understand that different users will all do different activities (text editing versus YouTube steaming), and that's going to have an impact on the numbers, but really, I'm just looking for averages. I saw one single mention online to this: 1 core and 2G of memory for 25 users. If that's correct, that's really amazing! Although, I didn't see any mention of the network requirements. I'd like to build a server capable of handling 150-300 simultaneous desktop connections. If I could do it with one server, it would be great. Sure, I can load it with dual Xeon processors, and gigabytes of memory, but how much network do I need? Is 1 x 10G enough? and will it really be able to handle the average load?
>
> Thanks for any feedback you can provide. You'll be helping me, but you'll also be helping others who are trying to search online for the limitations of Guacamole.
>
> Jason.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@guacamole.apache.org
> For additional commands, e-mail: user-help@guacamole.apache.org
>