Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Protecting Memory-Performance Critical Sections in Soft Real-Time
  Applications   Soft real-time applications such as multimedia applications often show bursty
memory access patterns---regularly requiring a high memory bandwidth for a
short duration of time. Such a period is often critical for timely data
processing. Hence, we call it a memory-performance critical section.
Unfortunately, in multicore architecture, non-real-time applications on
different cores may also demand high memory bandwidth at the same time, which
can substantially increase the time spent on the memory performance critical
sections.
  In this paper, we present BWLOCK, user-level APIs and a memory bandwidth
control mechanism that can protect such memory performance critical sections of
soft real-time applications. BWLOCK provides simple lock like APIs to declare
memory-performance critical sections. If an application enters a
memory-performance critical section, the memory bandwidth control system then
dynamically limit other cores' memory access rates to protect memory
performance of the application until the critical section finishes.
  From case studies with real-world soft real-time applications, we found (1)
such memory-performance critical sections do exist and are often easy to
identify; and (2) applying BWLOCK for memory critical sections significantly
improve performance of the soft real-time applications at a small or no cost in
throughput of non real-time applications.

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The categories of this paper are: math
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci