Memory bandwidth utilization

2012-06-25 Thread Rohangandhigen
Hi, I am using memcached and observing a low memory bandwidth utilization. Memcached memory bandwidth is around 1GB/s whereas I have seen memory bandwidth upto 15GB/s for random accesses. I am not sure where exactly is the bottleneck. Even if I run the memcached on a local machine (without sending

Re: Memory bandwidth utilization

2012-06-25 Thread Roberto Spadim
how you measure memory bandwidth? 2012/6/25 Rohangandhigen > Hi, > > I am using memcached and observing a low memory bandwidth utilization. > Memcached memory bandwidth is around 1GB/s whereas I have seen memory > bandwidth upto 15GB/s for random accesses. I am not sure where exactly > is the bo

Re: Memory bandwidth utilization

2012-06-25 Thread Rohangandhigen
I am using the Intel tools that provide the memory usage (at the memory controller). I measure the execution time (time between request made to mecached and response received for every request). Thanks, Rohan On Jun 25, 10:50 am, Roberto Spadim wrote: > how you measure memory bandwidth? > > 2012

Re: Memory bandwidth utilization

2012-06-25 Thread dormando
> > I am using memcached and observing a low memory bandwidth utilization. > Memcached memory bandwidth is around 1GB/s whereas I have seen memory > bandwidth upto 15GB/s for random accesses. I am not sure where exactly > is the bottleneck. Even if I run the memcached on a local machine > (without

Issue 278 in memcached: Memcached 1.4.13 segfaults (error 4) when SASL enabled

2012-06-25 Thread memcached
Status: New Owner: Labels: Type-Defect Priority-Medium New issue 278 by douglas@apollogrp.edu: Memcached 1.4.13 segfaults (error 4) when SASL enabled http://code.google.com/p/memcached/issues/detail?id=278 What steps will reproduce the problem? 1. Build the memcached code with the -

Re: How to contribute changes to Memcached 1.6

2012-06-25 Thread Viks
Hi, Can I get this new build for testing. I would really really want to do some experiment on this. -vikas On Thursday, 21 June 2012 10:10:56 UTC+5:30, rajiv wrote: > > Hi, > > I work at Intel and we have added a new optimized "engine" to Memcached > 1.6. This engine uses parallel hash tab