[Lustre-discuss] performance: hard vs. soft links

Michael Kluge Michael.Kluge at tu-dresden.de
Fri May 25 04:06:20 PDT 2012

Hi list,

for creating hard links instead of soft links (1.6.7, 1000 links created by 
one process, all in the same subdir, the node is behind one lnet router) I see 
about 25% overhead (time) on the client side. Is this OK/normal/expected? 
Lustre probably needs to increment some ref. counter on the link target if 
hard links are used?



Dr.-Ing. Michael Kluge

Technische Universität Dresden
Center for Information Services and
High Performance Computing (ZIH)
D-01062 Dresden

Willersbau, Room A 208
Phone:  (+49) 351 463-34217
Fax:    (+49) 351 463-37773
e-mail: michael.kluge at tu-dresden.de
WWW:    http://www.tu-dresden.de/zih
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