Memory Characterization of the ECperf Benchmark
Department of Information Technology, Uppsala University
The quest for quantitative performance analysis in computer architecture
research and design led to many research papers based on the commercially
important DSS and OLTP database applications. Today's middleware, and in
particular application servers, are rapidly gaining popularity as a new
workload for commercial multiprocessor servers. Therefore, it is
important to expand architecture studies into this area. SPEC has
recognized the importance of application servers and Java-Based middleware
with its recent adoption of SPECjAppServer2001, formerly ECperf, as one of
its benchmarks. In this paper, we present a detailed characterization of
the memory system behavior of ECperf running on both commercial server
hardware and in a simulated environment. We find that the working sets of
ECperf fit in a reasonably sized L2 cache, but that the miss rate is very
sensitive to associativity. Furthermore, many of the L2 misses in ECperf
are satisfied by data from the cache of a neighboring processor. Based on
these findings, we conclude that ECperf is an excellent candidate for
shared-cache memory systems, even when the total cache size is limited.
Appears in Proceedings of the 2nd Annual Workshop on Memory Performance
Issues (WMPI 2002), held in conjunction with the 29th International
Symposium on Computer Architecture (ISCA29), Anchorage, Alaska, USA, May
This talk will take 25 min the seminar will continue with
RH Lock: A Scalable Hierarchical Spin Lock
Place: Information technology, Uppsala University
Time: 14.15-15.00 (+ discussions)
Room 1146 is in building 1, floor 1, room 46
(in the northern part of the building).
There will be an extended period for discussions after the seminar in the coffe room on floor 4.
Speakers are encouraged to give an short (5 min) introduction to the subject at the begining of the talk.
Listeners are excused if they have to leave after 15.00.
Everyone is welcome !
Updated 13-May-2002 17:42 by Roland Grönroos
e-mail: info -at- astec.uu.se