Not logged in
Log in now
Create an account
Subscribe to LWN
An unexpected perf feature
LWN.net Weekly Edition for May 16, 2013
A look at the PyPy 2.0 release
PostgreSQL 9.3 beta: Federated databases and more
LWN.net Weekly Edition for May 9, 2013
So again you have manufactures doing non-real-world test (which might have been a good test a long time ago) for marketing purposes and optimising for that case.
prefetch and buffer bloat
Posted May 31, 2011 20:43 UTC (Tue) by marcH (subscriber, #57642)
... up to a size after which throughput does not get better. Yet we can sometimes see buffer sizes way past this point (e.g. 1 second), which proves that some manufacturers do not bother trying to optimize anything at all.
Posted May 31, 2011 21:05 UTC (Tue) by dlang (✭ supporter ✭, #313)
since they have the ram anyway, and buffers that are too small can cause problems. the logic then follows 'why not just use the ram in the device as a buffer'
this causes other problems, but these other problems were not well described until recently.
Copyright © 2013, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds