Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Micro-burst in Data Centers: Observations, Implications, and
  Applications   Micro-burst traffic is not uncommon in data centers. It can cause packet
dropping, which results in serious performance degradation (e.g., Incast
problem). However, current solutions that attempt to suppress micro-burst
traffic are extrinsic and ad hoc, since they lack the comprehensive and
essential understanding of micro-burst's root cause and dynamic behavior. On
the other hand, traditional studies focus on traffic burstiness in a single
flow, while in data centers micro-burst traffic could occur with highly fan-in
communication pattern, and its dynamic behavior is still unclear. To this end,
in this paper we re-examine the micro-burst traffic in typical data center
scenarios. We find that evolution of micro-burst is determined by both TCP's
self-clocking mechanism and bottleneck link. Besides, dynamic behaviors of
micro-burst under various scenarios can all be described by the slope of queue
length increasing. Our observations also implicate that conventional solutions
like absorbing and pacing are ineffective to mitigate micro-burst traffic.
Instead, senders need to slow down as soon as possible. Inspired by the
findings and insights from experimental observations, we propose S-ECN policy,
which is an ECN marking policy leveraging the slope of queue length increasing.
Transport protocols utilizing S-ECN policy can suppress the sharp queue length
increment by over 50%, and reduce the 99th percentile of query completion time
by ~20%.

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The categories of this paper are: q-alg
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The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: math-ph
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The categories of this paper are: atom-ph
3
The categories of this paper are: physics
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The categories of this paper are: funct-an
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: chao-dyn
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The categories of this paper are: solv-int
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The categories of this paper are: eess
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The categories of this paper are: chem-ph
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The categories of this paper are: patt-sol