We're looking at logon times (VDI launch to usable desktop) at around 1 minute when Elastic layering is disabled, which I'm a little concerned about. However, when we enable Elastic layering (Application only) in the image, logon times increase by an additional minute - and this is with no applications actually even being assigned elastically. Here's a snippet from the relevant log from some testing that I did yesterday:
2018-02-0511:57:40,571 INFO 5LayeringWindowsService:***CitrixLayeringService has started as a service. build 4.7.0.13796***2018-02-0511:57:40,930 INFO 5Program:***CitrixLayeringService has started as a service. build 4.7.0.13796***2018-02-0511:57:46,539 INFO 5ScheduledEventsInstaller: registering ScheduledEvents2018-02-0511:57:48,164 INFO 5HandlerInstaller:InstallingCommand/QueryHandlers2018-02-0511:57:50,164 INFO 5MachineIdentityService:ReadingElasticLayerMode...2018-02-0511:57:50,320 INFO 5MachineIdentityService:ElasticLayeringMode=Session2018-02-0511:57:50,320 INFO 5MachineIdentitySelector:Selected'SessionDynamicLayeringService'for'IDynamicLayeringService' from 2 options
2018-02-0511:57:50,336 INFO 5MachineIdentitySelector:Selected'SessionDynamicLayeringService'for'IDynamicLayeringService' from 2 options
2018-02-0511:58:03,007 INFO 5MachineIdentitySelector:Selected'SessionDynamicLayeringService'for'IDynamicLayeringService' from 2 options
2018-02-0511:58:03,007 INFO 5MachineIdentitySelector:Selected'SessionDynamicLayeringService'for'IDynamicLayeringService' from 2 options
2018-02-0511:58:03,007 INFO 5MachineIdentitySelector:Selected'SessionDynamicLayeringService'for'IDynamicLayeringService' from 2 options
2018-02-0511:58:03,429 INFO 5SessionDynamicLayeringService:CreatedSessionDynamicLayeringService2018-02-0511:58:03,445 INFO 5MachineIdentitySelector:Selected'SessionDynamicLayeringService'for'IDynamicLayeringService' from 2 options
2018-02-0511:58:03,445 INFO 5ServiceLifecycleManager:Creating start up task...2018-02-0511:58:03,445 INFO 5ServiceLifecycleManager:Start up task is running...2018-02-0511:58:03,445 INFO 5ServiceLifecycleManager:Attempting to request the required registry and volume privileges
2018-02-0511:58:03,523 INFO 5DynamicLayeringService:Cleared the configured volumes
2018-02-0511:58:03,539 INFO 5SessionEventRegistrar:Registeringfor logon/logoff events.2018-02-0511:58:03,554 INFO 5SessionEventRegistrar:Registeredfor logon/logoff events successfully.2018-02-0511:58:03,586 INFO 5LayerConfigService:Starting volume checker...2018-02-0511:58:03,586 INFO 5ActiveDirectoryInfoService:Starting AD Machine group polling
2018-02-0511:58:07,992 INFO 5ActiveDirectoryInfoService:MachineGroup SID(s):Domain\Domain Computers, S-1-5-32-5742018-02-0512:02:23,500 INFO 11RequestService:Starting request 1 on behalf of Domain\MyUser
2018-02-0512:02:23,500 INFO 11SessionEventHandler:Received logon event
2018-02-0512:02:23,516 INFO 11SessionEventHandler: logging in user Domain\MyUser (S-1-5-21-X)2018-02-0512:02:23,672 INFO 11SessionEventHandler: A domain user is logging in2018-02-0512:02:23,672 INFO 11DynamicLayeringService:Loggingin user Domain\MyUser (S-1-5-21-X)2018-02-0512:02:23,688 INFO 11WindowsId:ImpersonatingDomain\MyUser
2018-02-0512:02:24,594 INFO 11WindowsId:Finished impersonating Domain\MyUser
2018-02-0512:02:24,610 INFO 11DynamicLayeringService:Cleared the restricted user list volumes for sid (S-1-5-21-X)2018-02-0512:02:24,610 INFO 11SessionDynamicLayeringService:Running on a session host thus there will be no user layer
2018-02-0512:02:24,610 INFO 11SessionDynamicLayeringService:Running on a session host thus the drivers are already running
2018-02-0512:02:24,625 INFO 11DynamicLayeringService:LayeringComplete---------==LayeringResults==-----------User:Domain\MyUser (S-1-5-21-X),Machine: CTXSERVER01,ULayer:4.7.0.13796AssignedLayers:------------------------------------------2018-02-0512:02:24,641 INFO 11DynamicLayeringService:UserDomain\MyUser logged in successfully.No elastic layers were attached.2018-02-0512:02:24,672 INFO 11SessionEventHandler:Finished processing logon event
2018-02-0512:02:24,672 INFO 11RequestService:Ending request 1 started on behalf of Domain\MyUser
2018-02-0512:03:50,967 INFO 13RequestService:Starting request 2 on behalf of Domain\MyUser
2018-02-0512:03:50,983 INFO 13HandlerHelper:ProcessingQueryLogonStatusQuery->LogonStatusResult2018-02-0512:03:50,983 INFO 13HandlerHelper:FinishedQueryLogonStatusQuery->LogonStatusResult2018-02-0512:03:50,999 INFO 13RequestService:Ending request 2 started on behalf of Domain\MyUser
As you can see, there's a gap of roughly 1:30 in between 'request 1' ending and 'request 2' (which isn't really detailed) starting. No layers were assigned during this test, but all of my logs show similar behavior, with the long gap happening between those two lines.
Any ideas? Our current Windows 7 VDI (non-layered) in Prod has a logon time of about 20 seconds, and while I expect W10 to be longer, even the current 50-55 seconds is going to be a hard sell for our users.
Question
Nick Panaccio
We're looking at logon times (VDI launch to usable desktop) at around 1 minute when Elastic layering is disabled, which I'm a little concerned about. However, when we enable Elastic layering (Application only) in the image, logon times increase by an additional minute - and this is with no applications actually even being assigned elastically. Here's a snippet from the relevant log from some testing that I did yesterday:
As you can see, there's a gap of roughly 1:30 in between 'request 1' ending and 'request 2' (which isn't really detailed) starting. No layers were assigned during this test, but all of my logs show similar behavior, with the long gap happening between those two lines.
Any ideas? Our current Windows 7 VDI (non-layered) in Prod has a logon time of about 20 seconds, and while I expect W10 to be longer, even the current 50-55 seconds is going to be a hard sell for our users.
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