Date: Fri, 16 Mar 2001 17:54:16 +0100 From: Joachim =?iso-8859-1?Q?Str=F6mbergson?= <watchman@ludd.luth.se> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: Machines are getting too damn fast Message-ID: <3AB24538.1DC1A6B@ludd.luth.se> References: <Pine.BSF.4.32.0103051729350.84853-100000@mail.wolves.k12.mo.us> <200103060013.f260DHY46910@earth.backplane.com> <15013.2238.953211.516979@grasshopper.cs.duke.edu> <20010306110754.A23400@panzer.kdm.org>
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Aloha! In an earlier mail to the thread I pointed to the STREAM benchmark for memory sub systems. Additionally, I wrote that I knew there were another benchmark that tries to analyze word sizes, access latencies for the different memories in the mem sub system. I know can name that benchmark (or at least one such benchmark): MOB. Check out: http://steamboat.cs.ucsb.edu/mob/ The benchmark is currently not in the ports, but it has been tested (see the mob home page) on FreeBSD. I have downloaded it, compiled it and are measuring my own system while writing this. [1] Additionally, the following page is a pretty comprehensive list of links to tools and documentation relating to performance measurement, analysis and optimization. http://www.cs.virginia.edu/~clc5q/perflinks.html [1] MOB reported the following for my Dual Celeron 533 system: Allocated 64MB of memory for benchmarking Performing benchmark: Cache Size/Levels Data Caches: Found L1: [16384] Found L2: [131072] Found L3: [8388608] Instruction Caches: Found L1: [16384] Found L2: [131072] Performing benchmark: Cache Share Level 1 cache is not shared Level 2 cache is shared Performing benchmark: Cache Line Size Data Caches: Elected line size: 32 Elected line size: 28 Elected line size: 108 Instruction Caches: Elected line size: 100 Performing benchmark: Cache Associativity Data Caches: Detected L1 is 8-way associative. Detected L2 is 4-way associative. Detected L3 is 4-way associative. Instruction Caches: Detected L1 is 4-way associative. Performing benchmark: Cache Replacement Policy Data Caches: Detected L1 is random replacement policy Detected L2 is random replacement policy Detected L3 is random replacement policy Instruction Caches: Detected L1 has LRU replacement policy Performing benchmark: Cache Write Policy Data Caches: Found L1 replacement policy is write-back/allocate Found L2 replacement policy is write-back/allocate Found L3 replacement policy is write-through/no-allocate Performing benchmark: Cache Indexing (Virtual/Physical) Performing benchmark: TLB Page Size Data TLBs: Instruction TLBs: Performing benchmark: TLB Entry Count Data TLBs: Num entries: 10 Instruction TLBs: Number of entries not detected Performing benchmark: TLB Associativity Data TLBs: Found associativity 32 Instruction TLBs: Found associativity 32 # MOB Config file # Date Fri Mar 16 17:50:35 2001 # Host: fetis.ninja.se # Run params: trials=3 runTime=1000000 verbosity=2 [CACHE] level = 1 type = Data size = 16384 lineSize = 32 associativity = 8 replacement = random writeMode = writeBack-alloc latency = [CACHE] level = 2 type = Shared size = 131072 lineSize = 28 associativity = 4 replacement = random writeMode = writeBack-alloc latency = 1.0869 [CACHE] level = 3 type = Data size = 8388608 lineSize = 108 associativity = 4 replacement = random writeMode = writeThrough-noalloc latency = 235.7955 [CACHE] level = 1 type = Instruction size = 16384 lineSize = 100 associativity = 4 replacement = lru writeMode = latency = 1.0397 [TLB] type = Data pageSize = 524288 numEntries = 10 associativity = 32 latency = [TLB] type = Instruction pageSize = 1024 numEntries = associativity = 32 latency = -- Cheers! Joachim - Alltid i harmonisk svängning --- FairLight ------ FairLight ------ FairLight ------ FairLight --- Joachim Strömbergson ASIC SoC designer, nice to CUTE animals Phone: +46(0)31 - 27 98 47 Web: http://www.ludd.luth.se/~watchman --------------- Spamfodder: regeringen@regeringen.se --------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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