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Increasing the Cache Efficiency by Eliminating Noise

P. Pujara, A. Aggarwal
The Twelfth International Symposium on High-Performance Computer Architecture, 2006.  
Cache noise mispredictions increased the miss rate by 0.1% and had almost no impact on instructions per cycle (IPC) count.  ...  In a code context predictor, each cache block belongs to a code context determined by the upper order PC bits of the instructions that fetched the cache block.  ...  We also explored using profiling to improve the cache noise predictor efficiency.  ... 
doi:10.1109/hpca.2006.1598121 dblp:conf/hpca/PujaraA06 fatcat:xovxj4cpkzep5nza7key4ipz7u

Improving energy efficiency of asymmetric chip multithreaded multiprocessors through reduced OS noise scheduling

Ryan E. Grant, Ahmad Afsahi
2009 Concurrency and Computation  
In Section 5, we present the impact of OS noise on cache and system performance. Section 6 proposes the power-saving schedulers.  ...  This paper proposes two simple scheduling methods that reduce the impact of OS noise, while simultaneously taking advantage of an opportunity to increase overall machine energy efficiency on AMP servers  ...  The OS noise isolation also yielded the opportunity to increase overall energy efficiency by using an AMP.  ... 
doi:10.1002/cpe.1454 fatcat:hw64e7tybjhzlfpcvl3nmusi4i

The real-time reprojection cache

Diego Nehab, Pedro V. Sander, John R. Isidoro
2006 ACM SIGGRAPH 2006 Sketches on - SIGGRAPH '06  
Since the overhead of a reprojection cache lookup is small in comparison to the required perpixel processing, the cached algorithms show significant cost and/or quality improvements over their plain counterparts  ...  In this paper, we follow an alternative strategy: reducing the number of shading computations by exploiting spatio-temporal coherence.  ...  (c) Increasing the number of taps makes the noise barely visible, but can be too expensive. (d) Amortized super-sampling can eliminate the additional cost.  ... 
doi:10.1145/1179849.1180080 dblp:conf/siggraph/NehabSI06 fatcat:im6r2k6lgncvfo6j4l536dgdkq

Energy Efficiency Analysis of Cache-Enabled Cellular Networks with Limited Backhaul

Congshan Fan, Tiankui Zhang, Zhimin Zeng, Yue Chen
2018 Wireless Communications and Mobile Computing  
The accuracy of theoretical analysis is verified by the Monte Carlo simulation.  ...  This paper investigates the energy efficiency of the cache-enabled cellular networks with the limited backhaul based on the stochastic geometry method.  ...  As cache capacity increases, the number of contents stored in the BS grows and the cache hit ratio increases.  ... 
doi:10.1155/2018/6910876 fatcat:dypqecbc5fchhlrxp5u44jkxqm

Energy Efficient Caching in Backhaul-Aware Cellular Networks with Dynamic Content Popularity

Jiequ Ji, Kun Zhu, Ran Wang, Bing Chen, Chen Dai
2018 Wireless Communications and Mobile Computing  
To timely estimate the dynamic content popularity, we propose a method based on shot noise model (SNM).  ...  Furthermore, we analyze the tradeoff between energy efficiency and cache capacity for which an optimization is formulated.  ...  Meanwhile, compared with the nondistributed cache scheme, the distributed cache scheme can further improve the energy efficiency by increasing the cache-hit rate.  ... 
doi:10.1155/2018/7532049 fatcat:3jibss4r4zcwpizoaimc42lhya

Efficient privacy-aware search over encrypted databases

Mehmet Kuzu, Mohammad Saiful Islam, Murat Kantarcioglu
2014 Proceedings of the 4th ACM conference on Data and application security and privacy - CODASPY '14  
On the other hand, almost all efficient schemes leak some information, especially data access pattern to the remote servers.  ...  Our approach leaks obfuscated access pattern to enable efficient retrieval while ensuring individual privacy.  ...  In our context, positive noise is incorporated by adding fake records to the dataset, while negative noise requires placement of the original records in a local cache.  ... 
doi:10.1145/2557547.2557570 dblp:conf/codaspy/KuzuIK14 fatcat:cd5srzsk5rfoznrvtmbl3urc5m

Enhanced Methods of Mobile Cache Sharing and Pre-fetching for Required Web Contents

2019 International journal of recent technology and engineering  
Availability of content over the web is increasing exponentially. The demand for content by users is also increasing rapidly.  ...  Hence a hybrid method is proposed in this paper by combining the different techniques such as caching, pre-fetching and cache sharing with noise reduction to improve the overall performance of mobile for  ...  While storing data in cache/prefetch area, the unwanted contents are identified and the prevalent noise is removed for efficient memory utilization.  ... 
doi:10.35940/ijrte.c6310.098319 fatcat:3pcjf5cx2faddgxadajgl4xb6q

A microarchitectural-level step-power analysis tool

Wael El-Essawy, David H. Albonesi, Balaram Sinharoy
2002 Proceedings of the 2002 international symposium on Low power electronics and design - ISLPED '02  
We show how the tool can be used to identify major sources of high microprocessor step-power events.  ...  However, clock gating can exacerbate maximum cycleto-cycle current swings, or the step-power (Ldi/dt) problem.  ...  Increasing the number of ports linearly increases the power consumption of the data cache, and also increases the step-power of the cache.  ... 
doi:10.1145/566408.566477 dblp:conf/islped/El-EssawyAS02 fatcat:dljehzgofbgvdmnlolkjdj3cfy

Actively Alleviate Power Gating-Induced Power/Ground Noise Using Parasitic Capacitance of On-Chip Memories in MPSoC

Xuan Wang, Jiang Xu, Wei Zhang, Xiaowen Wu, Yaoyao Ye, Zhehui Wang, Mahdi Nikdast, Zhe Wang
2015 IEEE Transactions on Very Large Scale Integration (vlsi) Systems  
With significant area, power and performance overheads, traditional methods rely on reinforced circuits or fixed protection strategies to reduce P/G noises caused by power gating.  ...  We use the parasitic capacitance of on-chip memories as dynamic decoupling capacitance to suppress P/G noises and develop a detailed HSPICE model for related study.  ...  When the noise margin of the cache decreases, the impact ranges of the cache attackers increase.  ... 
doi:10.1109/tvlsi.2014.2306959 fatcat:ldraqlmo7rbrfkwq7ahiqjkx24

A Performance Efficient Technique for Recognition of Telugu Script Using Template Matching

N. Shobha Rani, Vasudev T, Pradeep C.H
2016 International Journal of Image Graphics and Signal Processing  
The proposed system exhibits the recognition efficiency on our own test dataset with an overall accuracy of 83.55% for handwritten characters.  ...  The technique of caching is implemented using main database with a cache database maintaining the frequently used character templates for set of all character templates.  ...  Thus the result achieved by template matching is optimal for the test templates that are corrupted by Gaussian noise.  ... 
doi:10.5815/ijigsp.2016.08.03 fatcat:yyqrt7xzwvh5tb2xao2byvffsu

Reducing seed noise in personalized PageRank

Shengyu Huang, Xinsheng Li, K. Selçuk Candan, Maria Luisa Sapino
2016 Social Network Analysis and Mining  
Moreover, the proposed formulations are reuse-promoting in the sense that, it is possible to divide the work relative to individual seed nodes and cache the intermediary results  ...  We also show that the proposed techniques lead to efficient implementations, where existing approximation algorithms and/or parallel implementations for computing the PPR scores can be easily leveraged  ...  elimination and efficiency.  ... 
doi:10.1007/s13278-015-0309-6 fatcat:tkmclvga55fjtgnb7rdiyoh2he

GreenFS

Nikolai Joukov, Josef Sipek
2008 ACM SIGOPS Operating Systems Review  
As a result, GreenFS improves enterprise data protection, minimizes disk drive-related power consumption and noise and increases the chances of disk drive survivability in case of unexpected external impacts  ...  We show that solutions developed to date are incapable of solving the power consumption, noise, and data reliability problems without sacrificing hard disk life-time, data reliability, or user convenience  ...  Wright for his help with the Auto-pilot setup and Bulent Abali and James V. Norris for their help with the BladeCenter power measurements.  ... 
doi:10.1145/1357010.1352600 fatcat:w6nn6ytvuveypkbiochdsnx4o4

GreenFS

Nikolai Joukov, Josef Sipek
2008 Proceedings of the 3rd ACM SIGOPS/EuroSys European Conference on Computer Systems 2008 - Eurosys '08  
As a result, GreenFS improves enterprise data protection, minimizes disk drive-related power consumption and noise and increases the chances of disk drive survivability in case of unexpected external impacts  ...  We show that solutions developed to date are incapable of solving the power consumption, noise, and data reliability problems without sacrificing hard disk life-time, data reliability, or user convenience  ...  Wright for his help with the Auto-pilot setup and Bulent Abali and James V. Norris for their help with the BladeCenter power measurements.  ... 
doi:10.1145/1352592.1352600 dblp:conf/eurosys/JoukovS08 fatcat:tsjpk7v7e5cjvlzjyt4wtkvab4

Parallelized benchmark-driven performance evaluation of SMPs and tiled multi-core architectures for embedded systems

Arslan Munir, Ann Gordon-Ross, Sanjay Ranka
2012 2012 IEEE 31st International Performance Computing and Communications Conference (IPCCC)  
Furthermore, many other applications consist of various kernels, such as Gaussian elimination (used in network coding), that dominate the execution time.  ...  We compare and analyze the performance of an Intel-based SMP and Tilera's TILEPro64 TMA based on our parallelized benchmarks for the following performance metrics: runtime, speedup, efficiency, cost, scalability  ...  application, a Gaussian elimination (GE) kernel, and an embarrassingly parallel (EP) benchmark.  ... 
doi:10.1109/pccc.2012.6407785 dblp:conf/ipccc/MunirGR12 fatcat:ej24xs7gvrhdbffctjdy3ktmcq

Mitigating Cross-VM Side Channel Attack on Multiple Tenants Cloud Platform

Fei Liu, Lanfang Ren, Hongtao Bai
2014 Journal of Computers  
The scheduler is able to control the execution time overlapping of different VMs, and can also inject noise periodically to mitigate the threat of potential side channels.  ...  We have built a prototype of the proposed scheduler that enables overlapping control and noise injection. The performance evaluations show that the overhead introduced is acceptable.  ...  The noise functions can be various, including memory contention or cache contention, or even defined by the user.  ... 
doi:10.4304/jcp.9.4.1005-1013 fatcat:3we7r7vi3vbu3h3umwr3krlawm
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