Processor cache line size linux

for L1 cache size, I am doing the following pico /proc/cpuinfo what about L2 cache size? Stack Exchange Network Stack Exchange network consists of Q&A communities including Stack Overflow, the largest, most trusted online community for developers to . L1 Data cache: 32KB, 8-way associative. 64 byte line size. L2 (MLC): KB, 8-way associative. 64 byte line size. TLB info Instruction TLB: 2MB or 4MB pages, fully associative, 7 entries Instruction TLB: 4K pages, 4-way associative, 64 entries. Data TLB: 4KB or 4MB pages, fully associative, 32 entries. Secondly I want the start of the array to be aligned to a cache line. I am using Linux and 8-core x86 platform. First how do I find the cache line size. Secondly, how do I align to a cache line in C. I am using the gcc compiler. So the structure would be following for example, assuming a cache line size .

Processor cache line size linux

Sep 21,  · Currently, I'm using a PPC processor which has cache line size of 64 KB which is used for all cache line operations and I want the same to be 32 KB (instead of 64) to support one user app which has the limitation. Attempts made: > tried to enable the compact mode present in the processor which didn't helped me becuase of some dependency. Secondly I want the start of the array to be aligned to a cache line. I am using Linux and 8-core x86 platform. First how do I find the cache line size. Secondly, how do I align to a cache line in C. I am using the gcc compiler. So the structure would be following for example, assuming a cache line size . Dec 08,  · When doing high-performance computing, you need to worry about the CPU cache line size in order to avoid issues like false sharing. But how can you determine the processor’s cache size? The GetLogicalProcessorInformation function will give you characteristics of the logical processors in use by the system.However, if the processor in which you' are interested is running on Linux or Windows you should be able to get the cacheline size. When doing high-performance computing, you need to worry about the CPU cache line size in order to avoid issues like false sharing. But how. lscpu will provide the info you're looking for. lscpu | grep "cache" to filter out only cache info. This will result in something like: L1d cache: 32K L1i cache: 32K L2.

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How to get CPU and RAM information on Linux, time: 1:52
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Caching In: Understand, Measure, and Use Your CPU Cache More Effectively, time: 54:23
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