189 research outputs found
The Effect of Network and Infrastructural Variables on SPDY's Performance
HTTP is a successful Internet technology on top of which a lot of the web
resides. However, limitations with its current specification, i.e. HTTP/1.1,
have encouraged some to look for the next generation of HTTP. In SPDY, Google
has come up with such a proposal that has growing community acceptance,
especially after being adopted by the IETF HTTPbis-WG as the basis for
HTTP/2.0. SPDY has the potential to greatly improve web experience with little
deployment overhead. However, we still lack an understanding of its true
potential in different environments. This paper seeks to resolve these issues,
offering a comprehensive evaluation of SPDY's performance using extensive
experiments. We identify the impact of network characteristics and website
infrastructure on SPDY's potential page loading benefits, finding that these
factors are decisive for SPDY and its optimal deployment strategy. Through
this, we feed into the wider debate regarding HTTP/2.0, exploring the key
aspects that impact the performance of this future protocol
ΠΠ»ΠΈΡΠ½ΠΈΠ΅ ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΡΡΡΠΊΡΡΡΡ Π²Π΅ΡΠ΅ΡΡΠ²Π° Π½Π° ΠΏΠΎΡΠ΅ΡΠΈ ΡΠ½Π΅ΡΠ³ΠΈΠΈ Π±ΡΡΡΡΡΠΌΠΈ ΠΏΡΠΎΡΠΎΠ½Π°ΠΌΠΈ Π² ΠΌΠΎΠ½ΠΎΠΊΡΠΈΡΡΠ°Π»Π»Π°Ρ Π³Π°Π»ΠΎΠ³Π΅Π½ΠΈΠ΄ΠΎΠ² ΡΠ΅Π»ΠΎΡΠ½ΡΡ ΠΌΠ΅ΡΠ°Π»Π»ΠΎΠ²
Π ΡΠ°Π±ΠΎΡΠ΅ ΡΠ°ΡΡΠΌΠΎΡΡΠ΅Π½ Π²ΠΎΠΏΡΠΎΡ ΠΎ ΠΊΠ°Π½Π°Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΠΈ ΠΏΡΠΎΡΠΎΠ½ΠΎΠ² Π² ΠΈΠΎΠ½Π½ΡΡ
ΠΊΡΠΈΡΡΠ°Π»Π»Π°Ρ
, ΠΎΠ±Π»Π°Π΄Π°ΡΡΠΈΡ
ΠΏΡΠΎΡΡΠΎΠΉ ΠΊΡΠ±ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΡΡΡΠΊΡΡΡΠΎΠΉ. Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ ΡΠ»ΡΡΠ°ΠΈ ΠΏΡΠΎΡ
ΠΎΠΆΠ΄Π΅Π½ΠΈΡ ΠΏΡΠΎΡΠΎΠ½ΠΎΠ² Π² Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΠΈ [100] ΠΈ ΠΌΠ΅ΠΆΠ΄Ρ ΠΏΠ»ΠΎΡΠΊΠΎΡΡΡΠΌΠΈ (100) ΠΌΠΎΠ½ΠΎΠΊΡΠΈΡΡΠ°Π»Π»ΠΎΠ². Π Π°ΡΡΡΠΈΡΠ°Π½Ρ ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π»Ρ Π΄Π»Ρ Π°ΡΠΎΠΌΠ½ΡΡ
ΠΏΠ»ΠΎΡΠΊΠΎΡΡΠ΅ΠΉ ΠΈ Π°ΡΠΎΠΌΠ½ΡΡ
ΡΡΠ΄ΠΎΠ² ΠΊΡΠΈΡΡΠ°Π»Π»ΠΎΠ² ΠΈ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ ΠΏΡΠ΅Π΄Π΅Π»ΡΠ½ΡΠ΅ ΡΠ³Π»Ρ ΠΊΠ°Π½Π°Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π΄Π»Ρ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ Π³Π°Π»ΠΎΠ³Π΅Π½ΠΈΠ΄ΠΎΠ² Π½Π°ΡΡΠΈΡ ΠΈ ΠΊΠ°Π»ΠΈΡ. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Ρ ΡΠ½Π΅ΡΠ³Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠΏΠ΅ΠΊΡΡΡ ΠΏΡΠΎΡΠΎΠ½ΠΎΠ², ΠΏΡΠΎΡΠ΅Π΄ΡΠΈΡ
ΠΌΠΎΠ½ΠΎΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΌΠΈΡΠ΅Π½ΠΈ ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ, ΠΈ Π½Π°ΠΉΠ΄Π΅Π½Π° ΠΊΠΎΡΡΠ΅Π»ΡΡΠΈΡ ΠΌΠ΅ΠΆΠ΄Ρ ΡΠΎΡΠΌΠΎΠΉ ΡΠ½Π΅ΡΠ³Π΅ΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠΏΠ΅ΠΊΡΡΠ° ΠΈ ΡΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠ΅ΠΌ ΡΠ°Π΄ΠΈΡΡΠΎΠ² ΠΈΠΎΠ½ΠΎΠ² Π² ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΈ, ΠΌΠ΅ΠΆΠ΄Ρ Π΄ΠΎΠ»Π΅ΠΉ ΠΊΠ°Π½Π°Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΠ°ΡΡΠΈΡ ΠΈ ΠΏΠΎΡΡΠ΄ΠΊΠΎΠ²ΡΠΌ Π½ΠΎΠΌΠ΅ΡΠΎΠΌ Π³Π°Π»ΠΎΠΈΠ΄Π° Π² ΡΡΠ΄Π°Ρ
Using DCCP: Issues and improvements
is no longer too young to be usable: the first RFCs were published in 2006, and a stable and quite complete Linux implementation exists. DCCP over UDP has also recently been specified to address network traversal problems. But how good is the service provided to applications by this protocol? This paper identifies some deficiencies of the current implementationβthe lack of transparency in the API with regard to packet loss, the coarse granularity of the lookup table used to calculate the TFRC equation, and the lack of history discounting in CCID-3βand demonstrates that they can significantly impair the performance of typical DCCP use cases such as live video streaming. Solutions are proposed to tackle all these problems, and it is shown that they considerably improve the performance and the flexibility of applications. I
Optimizing Selective ARQ for H.264 Live Streaming: A Novel Method for Predicting Loss-Impact in Real Time
De-ossifying the Internet Transport Layer : A Survey and Future Perspectives
ACKNOWLEDGMENT The authors would like to thank the anonymous reviewers for their useful suggestions and comments.Peer reviewedPublisher PD
Future Internet Congestion Control:The Diminishing Feedback Problem
It is increasingly difficult for Internet congestion control mechanisms to
obtain the feedback that they need. This lack of feedback can have severe
performance implications, and it is bound to become worse. In the long run, the
problem may only be fixable by fundamentally changing the way congestion
control is done in the Internet. We substantiate this claim by looking at the
evolution of the Internet's infrastructure over the past thirty years, and by
examining the most common behavior of Internet traffic. Considering the goals
that congestion control mechanisms are intended to address, and taking into
account contextual developments in the Internet ecosystem, we arrive at
conclusions and recommendations about possible future congestion control design
directions. In particular, we argue that congestion control mechanisms should
move away from their strict "end-to-end" adherence. This change would benefit
from avoiding a "one size fits all circumstances" approach, and moving towards
a more selective set of mechanisms that will result in a better performing
Internet. We will also discuss how this future vision differs from today's use
of Performance Enhancing Proxies (PEPs).Comment: Accepted for publication in IEEE Communications Magazine, 2022 (Open
Call Article
Reducing Internet Latency : A Survey of Techniques and their Merit
Bob Briscoe, Anna Brunstrom, Andreas Petlund, David Hayes, David Ros, Ing-Jyh Tsang, Stein Gjessing, Gorry Fairhurst, Carsten Griwodz, Michael WelzlPeer reviewedPreprin
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