[X2Go-User] ssh-keygen.exe loads the processor every time the client starts

Stefan Baur X2Go-ML-1 at baur-itcs.de
Fri Oct 6 15:15:32 CEST 2017


Am 06.10.2017 um 15:07 schrieb Walid MOGHRABI:
>> I haven't tested it myself yet, but some devs suggested that slow 
>> session startup (as opposed to slow booting to login screen) may be 
>> caused by homedirs stored on NFS. 
>> Might be worth adding a test account that has a homedir "native" to the 
>> server, and if that brings a significant speed increase, trying out 
>> other networked filesystems like glusterfs. 
> Might be possible, NFS migh probably add a few latency but I wouldn't recommend using GlusterFS instead, it is far slower due to the voulme beeing mounted through Fuse.
> I already did many testing on GlusterFS for our internal usage and it is by far slower than NFS.
> CephFS (file sharing "nfs like" filesystem provided by Ceph on top of it's storage capabilities, as opposed to the "usual" block mode it provides) could be worth trying but I didn't had the opportunity to do some testing by now.
> Anyway, I think it should be at most comparable to NFS, not really faster.

See, you "think", but you haven't verified it in comparison to a local
homedir.  As I said, I haven't either, but it was a hint from some of
the devs to look out for that.  So maybe we just have to live with a
slower session startup if networked homedirs are part of the equation;
testers to confirm or dismiss this theory are welcome. ;-)

Kind Regards,
Stefan Baur

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