Systems and Cloud Engineering, Architecture, DevOps, Infrastruture
Okay, this has been a long time coming, but thought I’d write this down before I forget all about it. First a little bit of a rant. In the EMC world, we assign LUNs to hosts and identify them using a hex-id code called the LUN ID. This, in conjunction with the EMC Frame ID, …
EMC eye for an MPxIO Guy Read More »
About the STREAM benchmark http://blogs.utexas.edu/jdm4372/tag/stream-benchmark/ Here’s what the author has to say about the benchmark itself — What is STREAM? The STREAM benchmark is a simple synthetic benchmark program that measures sustainable memory bandwidth (in MB/s) and the corresponding computation rate for simple vector kernels. /*———————————————————————–*/ /* Program: Stream */ /* Revision: $Id: stream.c,v 5.9 2009/04/11 …
STREAM(like) benchmark, Solaris and the SPARC T4 processor Read More »
It’s been a while since I’ve posted anything. So, here goes: Identifying kernel memory leak on myhost-ldom (after P2V and OS upgrade from Solaris 9 to Solaris 10u10): kmem_track.d sees this: Tracing…If you see more allocs than frees, there is a potential issue… Check against the cache name that is suspect CACHE NAME ALLOCS FREES kmem_bufctl_audit_cache …
Using mdb and DTrace to detect Memory Leaks Read More »