Table of Contents
What is a cache simulator?
A cache simulator is a software tool that mimics the behavior of a hardware cache subsystem. A cache is used to reduce the average cost of accessing main memory from the processor.
What is SimpleScalar?
The SimpleScalar tool set is a system software infrastructure used to build modeling applications for program performance analysis, detailed microarchitectural modeling, and hardware-software co-verification.
What is sim outorder?
Sim-outorder is an instruction-level simulator of an out-of-order issue superscalar processor. The memory system is two-level and there is speculative execution support. This is a performance simulator, tracking the latency of all pipeline operations.
How do you install a simple scalar?
- Installing SimpleScalar in Linux.
- Create a directory simplesim(we can use any name) in the home directory.
- Unpack the tar files.
- Unpack the tar file gcc-2.7.2.3. ss. tar. gz.
- Setting up environment variables for easy install.
- Installing simpleutils.
- Installing simplesim.
- Installing gcc.
What is a two way cache?
Each set contains two ways or degrees of associativity. Each way consists of a data block and the valid and tag bits. The cache reads blocks from both ways in the selected set and checks the tags and valid bits for a hit. If a hit occurs in one of the ways, a multiplexer selects data from that way.
How do I run Cachegrind?
4.1. 1. Overview
- Run your program with valgrind –tool=cachegrind in front of the normal command line invocation. When the program finishes, Cachegrind will print summary cache statistics.
- Generate a function-by-function summary, and possibly annotate source files, using the supplied cg_annotate program.
What is SMPCache?
SMPCache is a trace-driven simulator for the analysis and teaching of cache memory systems on symmetric multiprocessors. The simulation is based on a model built according to the architectural basic principles of these systems.
Which cache mapping techniques is best?
Set associative cache mapping combines the best of direct and associative cache mapping techniques. Usually, the cache memory can store a reasonable number of blocks at any given time, but this number is small compared to the total number of blocks in the main memory.
What is a 4 way cache?
For a 4-way associative cache each set contains 4 cache lines. Each cache line consists of a “tag” and a “data” field. There is also a “valid” bit, which is not shown. The tag portion of the request address is compared to all of the tag fields in the selected set.
What is valgrind tool?
Valgrind (/ˈvælɡrɪnd/) is a programming tool for memory debugging, memory leak detection, and profiling. Valgrind. Original author(s) Julian Seward.
What is Callgrind_annotate?
callgrind_annotate stops printing functions when the sum of the cost percentage of the printed functions for all the events is bigger or equal to the given event threshold percentages. When one or more thresholds are given via this option, the value of –threshold is ignored.
What is symmetric multiprocessing in operating system?
SMP (symmetric multiprocessing) is computer processing done by multiple processors that share a common operating system (OS) and memory. In symmetric multiprocessing, the processors share the same input/output (I/O) bus or data path.