Critical sections are well known potential performance bottlenecks in multithreaded applications and identifying the ones that inhibit scalability are important for performance optimizations. While previous approaches use idle time as a key measure, we show such a measure is not reliable. The reason is that idleness does not necessarily mean the critical section is on the critical path. We introduce critical lock analysis, a new method for diagnosing critical section bottlenecks in multithreaded applications. Our method firstly identifies the critical sections appearing on the critical path, and then quantifies the impact of such critical sections on the overall performance by using quantitative performance metrics. Case studies show that o...
A programming tool that performs analysis of critical paths for parallel programs has been developed...
Although some instructions hurt performance more than others, current processors typically apply sch...
Many interesting workloads today are limited not by CPU pro-cessing power but by the interactions be...
Critical sections are well known potential performance bottlenecks in multithreaded applications and...
Abstract. Understanding and optimizing the synchronization opera-tions of parallel programs in distr...
Analyzing multi-threaded programs is quite challenging, but is necessary to obtain good multicore pe...
Many important workloads today, such as web-hosted services, are limited not by processor core perfo...
Efficient performance tuning of parallel programs is often hard. Optimization is often done when the...
textWhen parallel applications do not fully utilize the cores that are available to them they are mi...
The years of practice in optimizing applications point that the major issue is focus - identifying t...
Bottlenecks and imbalance in parallel programs can significantly affect performance of parallel exec...
Performance of multithreaded applications is limited by a vari-ety of bottlenecks, e.g. critical sec...
Modern processors remove many artificial constraints on instruction ordering,permitting multiple ins...
We present a novel tool, called S-Check, for identifying performance bottlenecks in parallel and net...
The amount of parallelism in modern supercomputers currently grows from generation to generation. Fu...
A programming tool that performs analysis of critical paths for parallel programs has been developed...
Although some instructions hurt performance more than others, current processors typically apply sch...
Many interesting workloads today are limited not by CPU pro-cessing power but by the interactions be...
Critical sections are well known potential performance bottlenecks in multithreaded applications and...
Abstract. Understanding and optimizing the synchronization opera-tions of parallel programs in distr...
Analyzing multi-threaded programs is quite challenging, but is necessary to obtain good multicore pe...
Many important workloads today, such as web-hosted services, are limited not by processor core perfo...
Efficient performance tuning of parallel programs is often hard. Optimization is often done when the...
textWhen parallel applications do not fully utilize the cores that are available to them they are mi...
The years of practice in optimizing applications point that the major issue is focus - identifying t...
Bottlenecks and imbalance in parallel programs can significantly affect performance of parallel exec...
Performance of multithreaded applications is limited by a vari-ety of bottlenecks, e.g. critical sec...
Modern processors remove many artificial constraints on instruction ordering,permitting multiple ins...
We present a novel tool, called S-Check, for identifying performance bottlenecks in parallel and net...
The amount of parallelism in modern supercomputers currently grows from generation to generation. Fu...
A programming tool that performs analysis of critical paths for parallel programs has been developed...
Although some instructions hurt performance more than others, current processors typically apply sch...
Many interesting workloads today are limited not by CPU pro-cessing power but by the interactions be...