hw3d Posted April 7, 2008 Share Posted April 7, 2008 I am using a Q6600 and am only having 4MB of L2 cache show up instead of the 8MB that the processor has. Somebody help me? thx! Link to comment https://www.insanelymac.com/forum/topic/97886-leopard-1052-q6600-l2-cache-4m/ Share on other sites More sharing options...
hw3d Posted April 7, 2008 Author Share Posted April 7, 2008 Anybody known? give me some advice for this problem. Link to comment https://www.insanelymac.com/forum/topic/97886-leopard-1052-q6600-l2-cache-4m/#findComment-699310 Share on other sites More sharing options...
cloud9 Posted May 30, 2008 Share Posted May 30, 2008 it is not a problem, but a matter of reporting. I have the same Q6600 as you. Hardware Overview: Model Name: Mac Model Identifier: MacPro3,1 Processor Name: Intel® Core2 Quad CPU Q6600 @ Processor Speed: 2.4 GHz Total Number Of Cores: 4 L2 Cache (per processor): 4 MB CPU Features: FPU VME DE PSE TSC MSR PAE MCE CX8 APIC SEP MTRR PGE MCA CMOV PAT PSE36 CLFSH DS ACPI MMX FXSR SSE SSE2 SS HTT TM SSE3 MON DSCPL VMX EST TM2 SSSE3 CX16 TPR PDCM Memory: 6 GB Bus Speed: 1.07 GHz Boot ROM Version: Hack.88Z.int.0sh.061193037 (Award Software International, Inc.) Serial Number: CK157KMHK5B Pay attention to the L2 line: it says PER PROCESSOR. Well Q6600 are in fact two dual core silicon dies bonded together inside one capsule. One silicon die counts as a processor, and has a L2 cache of 4MB. Look up retailers for Q6600 and you'll see L2 reported as 2x4MB, not 8MB. The L2 cache is not unified per capsule, but per die ("processor" for the purpose of reporting above). Mystery solved! Leopard didn't eat your cache! Future Intel CPUs like Nehalem will be true (quad/octo) cores (on the same die) and will have 8 MB or more of L2 unified cache. Link to comment https://www.insanelymac.com/forum/topic/97886-leopard-1052-q6600-l2-cache-4m/#findComment-763873 Share on other sites More sharing options...
hg2007 Posted June 12, 2008 Share Posted June 12, 2008 How comes it dont show the amount of processors either? Does anyone know how to fix that? Link to comment https://www.insanelymac.com/forum/topic/97886-leopard-1052-q6600-l2-cache-4m/#findComment-780656 Share on other sites More sharing options...
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