Benjamin Oumlsterle
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Posts posted by Benjamin Oumlsterle
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Hi!
I got some new informations:
When i start a performance test with FIO on dom0, i got the same performance like on the vmware server (inside vm).
When i test inside a xenserver vm, i got the performance issue...?
Any ideas?
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Installed now the same physical server with VMware.
Test on XenServer:
Squential Read: 1000 MB/s
Squential Write: 600 MB/s
IOPS Read: 72.000
IOPS Write: 35.000
Performance Test on VMware ESXi:
Squential Read: 2200 MB/s
Squential Write: 1300 MB/s
IOPS Read: 140.000
IOPS Write: 50.000
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Inside VM - with CrystalDiskmark and IOMETER
Also performed it with FIO
HDPARM result:
Timing buffered disk reads: 668 MB in 3.01 seconds = 222.22 MB/sec
When i do a performance test inside the vm, the "tapdisk" process is jumping to 100%...
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37 minutes ago, Torsten Schneider said:
Hi,
could you please give us the output of "multipath -ll"?
Hi!
Sure!
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Hi!
Already tried to disable it.
Performance is getting slower...
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I tried the following things:
In the initial config i had 2 Network Adapters.
Adapter 1:
- Port 1 in LAN / DMZ
- Port 2 in ISCSI Network 1
Adapter 2:
- Port 1 in LAN / DMZ
- Port 2 in ISCSI Network 2
I did now a fresh install of XS 7.6.
Then I changed it that ISCSI Network 1 is on Adapter 2 Port 1, and ISCSI Network 2 is on Adapter Port 2.
No change.
I can identify that when i start a performance test, traffic is running through both interfaces - so mpio is working!
Then i tried to disable one of the interfaces, the speed is nearly the same. Tried the same thing with the other iscsi interface, same speed.
But whats happening with the CPU when i start performance test?
The cpu of dom0 is jumping to over 300%? Could be this the problem?
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Yes! Updated everything with the latest HPE SPP.
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I allocated more ram to dom0 (default4 gb, i allocated 16gb), no change.
i pinned 32 vcpu to dom0, no change.
The XenServers are on the same core switch with the VMware Servers...
With XenTop i can see that the cpu utilization is jumping the 300-400% when i start an iometer test!
CPU is 2x Intel(R) Xeon(R) CPU E5-2660 v3 @ 2.60GHz
When i do a simple CrystalDiskmark test, im getting over 2000 MBs Read, with the XenServer i get about 1000 MBs.
So i will accept it that the xenserver is a little bit slower, but we are talking about 50%...
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Hi,
we are having a PureStorage (AllFlash) Active Cluster with 2 VMware (Huawei 1288H V5) Servers and 2 XenServers (HP DL380 Gen9).
All Servers are connected with 2x 10GbE for the ISCSI Traffic.
The VMware Servers are using 2x 10GbE Ports for all Traffic (Internal, iscsi, dmz, and so on...)
The XenServers are having 2 dedicated ports for the ISCSI Traffic.
With the VMware Servers (Version 6.7) we are reaching:
Read: 105.000 IOPS
Write: 65.000 IOPS
With the XenServers (Version 7.6) we are getting:
Read: 72.000 IOPS
Write: 35.000 IOPS
So why are XenServers slower?
We are not using:
- Link Bonding
- LACP
- Jumbo Frames
MultiPathing is enabled and working - i can see on the Storage that the XenServers are connected with 4 Paths (2 Paths to ISCSI Network 1, and 2 Paths to ISCSI Network 2)
I used this guide to integrate the Storage:
Can somebody tell me why the XenServers are not having the same Performance like the ESXI Servers?
Kind Regards,
Benjamin
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Same Problem here.
Server 2016 with all Updates, 7.16 XA.
Sometimes i have this problem also on my Windows 10 Notebook.
... if i wait 10 seconds after the logon is finished - i got all icons. if i open the startmenu before - the icons are empty.
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Are you also using Outlook 2013 and Windows search? I am having the same problem and i am expecting that is the source of the problem. But I also don't know how to fix it.
Yep, running Windows Search and Outlook 2013..
I'll keep you up to date if i find any solution
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Hello,
im using XenApp 7.6 on Windows Server 2012 R2 (Published Desktops).
When the user logs of the session is stuck and it looks like the screenshot in the attachments.
The following processes are running:
csrss.exe
dwm.exe
LogonUI.exe
winlogon.exe
i am not able to sign of the session.
In this moment the user is not able to login on another server.
When i kill winlogon.exe the session closes, but the user is still not able to login.
When i restart the server the problem is temporary solved..
On the DDC i got this error in event viewer:
Error ID 12346, No available ressource found for user
Any idea on this issue?
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2
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Apple iOS Device Drive Redirection
in XenApp 7.x
Posted
Hello!
Did someone found a way to redirect the storage drive of an Apple iOS Device (the drive in windows explorer) to a XenApp Sessionhost?
Kind Regards