Multicore processors are more prevalent than ever, hence multicore programming Cache is essential to fully utilise the hardware's capability. This is due to the fact that it allows us to run our code across several CPU cores. But in order to use it successfully, you must be aware of and understand the underlying hardware. One of the most an important system components is the cachecomponent. Shared A cache lines are also present in line is the majority smallest portion of designs. False sharing in multicore/multithreaded tasks is thus data that can be mapped into a well-known problem. What is fake sharingcache, often known as cache line ping-ponging? False sharing sometime it can get mistreated by threads when that happens it is one of the called false sharing patterns . The way that affects performance it happens is when several threads exchange data. When at least two 2 threads use or alter access data that is physically close to one another in memory, which in response may cause it happens. False sharing is one of the sharing patterns that affects performance when several threads exchange data. This issue arises when at least two threads modify or make use of data that just so happens to be nearby in memory and ends up in used or modified by the same cache line2 threads. False sharing occurs does affect performance when they often modify their personal information in a way that causes the cache line to alternate between the caches of two separate threadsit happens.