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

[Michael Kluge]

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?


Michael

-- 

Dr.-Ing. Michael Kluge

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

Contact:
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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