<div dir="ltr"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><br></div><div dir="ltr"><br></div></div></div></div></div></div><div class="gmail_quote"><br><div dir="ltr"> <div class="m_8982839147337004469F0XO1GC-nb-gb"><div class="m_8982839147337004469F0XO1GC-H-d"><input style="opacity:0;height:1px;width:1px;overflow:hidden" type="text"><span></span></div></div> <div class="m_8982839147337004469F0XO1GC-ed-a"> <div class="m_8982839147337004469F0XO1GC-nb-P"><input style="opacity:0;height:1px;width:1px;overflow:hidden" type="text"><div><div style="overflow:auto"><div style="max-height:10000px"><div dir="ltr"><p style="text-align:center;clear:both"><a href="https://lh3.googleusercontent.com/-ZPFNPh16sR0/Wt39FrXUP-I/AAAAAAAAAaw/3wQunGe20lUopmV_ggfPaDwE9cVAgVzxgCLcBGAs/s1600/image001.jpg" style="margin-left:1em;margin-right:1em" target="_blank"><img src="https://lh3.googleusercontent.com/-ZPFNPh16sR0/Wt39FrXUP-I/AAAAAAAAAaw/3wQunGe20lUopmV_ggfPaDwE9cVAgVzxgCLcBGAs/s1600/image001.jpg" border="0"></a></p><br>
<p class="MsoNormal" style="text-align:center" align="center"><span style="font-family:"Verdana",sans-serif;color:black">DATE:</span><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"> </span><span style="font-size:13.5pt;font-family:"Verdana",sans-serif;color:black"> </span><b><span style="font-size:18.0pt;font-family:"Verdana",sans-serif">Friday, September 7, 2018</span></b></p>
<p class="MsoNormal" style="text-align:center" align="center"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"><br></span></p><p class="MsoNormal" style="text-align:center" align="center"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"> </span></p>
<p class="MsoNormal" style="text-align:center" align="center"><span style="font-family:"Verdana",sans-serif;color:black">TITLE:</span><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"> <br></span></p><p class="MsoNormal" style="text-align:center" align="center"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"> <br></span></p><p class="MsoNormal" style="text-align:center" align="center"><font size="6"><span style="font-family:verdana,sans-serif"></span></font></p><p class="MsoNormal" style="text-align:center" align="center"><font size="6"><span style="font-family:verdana,sans-serif"><b><span style="background:white none repeat scroll 0% 0%"></span></b></span></font></p><div style="text-align:center"><span style="font-family:verdana,sans-serif"><font size="6"><b><span>A </span></b></font></span><span style="font-family:verdana,sans-serif"><font size="6"><b><span>File System Bypassing Volatile Main Memory: Towards A Single-Level Persistent Store</span></b></font><br></span><span style="font-family:verdana,sans-serif"><font size="6"><b><span style="font-size:11pt"></span></b> </font></span></div><p class="MsoNormal" style="text-align:center" align="center"><span style="font-family:"Verdana",sans-serif;color:black"> </span></p>
<p class="MsoNormal" style="text-align:center" align="center"><span style="font-family:"Verdana",sans-serif;color:black"><br></span></p><p class="MsoNormal" style="text-align:center" align="center"><span style="font-family:"Verdana",sans-serif;color:black">TIME:</span><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"> </span><span style="font-size:13.5pt;font-family:"Verdana",sans-serif;color:black"> </span><b><span style="font-size:18.0pt;font-family:"Verdana",sans-serif">3<span style="color:black">:30PM</span></span></b></p>
<p class="MsoNormal" style="text-align:center" align="center"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"> </span></p>
<p class="MsoNormal" style="text-align:center" align="center"><span style="font-family:"Verdana",sans-serif;color:black">LOCATION:</span><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"> <b> </b></span><b><span style="font-size:18.0pt;font-family:"Verdana",sans-serif">GMCS 314</span></b></p>
<p class="MsoNormal" style="text-align:center" align="center"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"> </span></p>
<p class="MsoNormal" style="text-align:center" align="center"><span style="font-family:"Verdana",sans-serif;color:black">SPEAKER/BIO:</span><span style="font-size:13.5pt;font-family:"Verdana",sans-serif;color:black"> </span><b><span style="font-size:18.0pt;font-family:"Verdana",sans-serif"></span></b></p><p class="MsoNormal" style="text-align:center" align="center"><font size="4"><span style="font-family:verdana,sans-serif"><b><span><b><span style="font-size:18.0pt;font-family:"Verdana",sans-serif"><span style="color:black"></span></span></b></span></b></span></font><b><span style="font-size:18.0pt;font-family:"Verdana",sans-serif">Tao Xie, Professor, Department of Computer Science, SDSU<br></span></b><font size="4"><span style="font-family:verdana,sans-serif"><b><span><b><span style="font-size:18.0pt;font-family:"Verdana",sans-serif"><span style="color:black"></span></span></b></span><span></span></b></span></font></p><p class="MsoNormal" style="text-align:center" align="center"><b><span style="font-size:18.0pt;font-family:"Verdana",sans-serif"><br></span></b></p>
<p class="MsoNormal" style="text-align:center" align="center"><span style="font-family:"Verdana",sans-serif;color:black"> </span></p>
<p class="MsoNormal"><span style="font-family:"Verdana",sans-serif;color:black"><br></span></p><p class="MsoNormal"><span style="font-family:"Verdana",sans-serif;color:black">ABSTRACT:</span></p>
<p><font size="4"><span style="font-family:verdana,sans-serif">Existing persistent memory (PM) based file systems rely on a DRAM and PM
hybrid store. Although a hybrid store does boost system performance
while avoiding some current PM limitations like limited endurance, we
envision that with more advances PM technologies could provide
applications with a single-level persistent store in the not-so-distant
future. As a first step to explore this direction, in this paper we
design, implement, and evaluate a new persistent memory file system
called SPFS (Single-level Persistent File System), which completely
bypasses conventional DRAM-based volatile main memory.
Unlike all existing PM-based file systems, SPFS never leverages DRAM to
manage its metadata. Thus, redundant copies of metadata in volatile main
memory and data movements between the two memories can be totally
eliminated. The goal of this paper is to explore how to manage files and
their metadata with guaranteed data consistency on PM without the
support of DRAM, which makes a first step towards the ultimate success
of a single-level persistent store. Experimental results demonstrate
that SPFS outperforms traditional DRAM-based in-memory file systems
ramfs and tmpfs in most cases. Besides, its performance is only
moderately worse than that of NOVA, a state-of-the-art PM-based file
system.</span></font></p>
<h2><span></span><span style="font-size:11.0pt;font-family:"Verdana",sans-serif;font-weight:normal"><span></span></span><span><span style="font-size:11.0pt;font-family:"Verdana",sans-serif;font-weight:normal"></span></span></h2>
<h2><span> </span></h2>
<h2><span style="font-size:11.0pt;font-family:"Verdana",sans-serif;color:black;font-weight:normal">HOST:</span><span style="font-family:"Verdana",sans-serif;color:#1f497d"> </span><font size="4"><span style="font-family:verdana,sans-serif">Wei Wang<br></span></font></h2></div></div></div></div></div> </div> <div class="m_8982839147337004469F0XO1GC-nb-b"> <div class="m_8982839147337004469F0XO1GC-nb-a m_8982839147337004469F0XO1GC-nb-cb"> <div> <div style="display:inline-block"> </div></div></div></div><span class="HOEnZb"><font color="#888888"> </font></span><span class="HOEnZb"><font color="#888888"> </font></span><table class="m_8982839147337004469F0XO1GC-nb-O" cellspacing="0" cellpadding="0"><tbody><tr><td class="m_8982839147337004469F0XO1GC-nb-R" valign="top" align="left"><span class="m_8982839147337004469_username"><span class="m_8982839147337004469F0XO1GC-D-a" style="color:rgb(34,34,34)"></span></span> <span></span> </td> <td valign="top" align="right"> <div class="m_8982839147337004469F0XO1GC-nb-e"><div class="m_8982839147337004469F0XO1GC-n-a m_8982839147337004469jfk-button-standard m_8982839147337004469F0XO1GC-n-f m_8982839147337004469F0XO1GC-nb-i m_8982839147337004469F0XO1GC-nb-A"><img src="cid:autoGeneratedInlineImage1" class="m_8982839147337004469gwt-Image m_8982839147337004469F0XO1GC-n-d" width="21" height="21"><input style="opacity:0;height:1px;width:1px;overflow:hidden" type="text"><span class="m_8982839147337004469F0XO1GC-n-e"></span></div><span class="m_8982839147337004469F0XO1GC-nb-i m_8982839147337004469F0XO1GC-nb-f"><div class="m_8982839147337004469F0XO1GC-n-a m_8982839147337004469jfk-button-standard m_8982839147337004469F0XO1GC-k-c m_8982839147337004469F0XO1GC-nb-k m_8982839147337004469F0XO1GC-n-i m_8982839147337004469F0XO1GC-n-h" id="m_8982839147337004469b_action_prh3EfRgDwAJ"><input style="opacity:0;height:1px;width:1px;overflow:hidden" type="text"><span class="m_8982839147337004469F0XO1GC-n-e"><span></span></span><span class="m_8982839147337004469F0XO1GC-k-a"><span class="m_8982839147337004469F0XO1GC-k-b"></span></span></div></span></div> <div class="m_8982839147337004469F0XO1GC-nb-R m_8982839147337004469F0XO1GC-nb-T"> <span class="m_8982839147337004469F0XO1GC-nb-Q m_8982839147337004469F0XO1GC-b-Cb" title="Monday, August 27, 2018 at 3:58:30 PM UTC-7">Aug 27</span><span class="HOEnZb"><font color="#888888"> </font></span></div><span class="HOEnZb"><font color="#888888"> </font></span></td></tr></tbody></table></div><span class="HOEnZb"><font color="#888888">
<p></p>
-- <br>
You received this message because you are subscribed to the Google Groups "CSRC Colloquium" group.<br>
To unsubscribe from this group and stop receiving emails from it, send an email to <a href="mailto:csrc.colloquium+unsubscribe@sdsu.edu" target="_blank">csrc.colloquium+unsubscribe@<wbr>sdsu.edu</a>.<br>
For more options, visit <a href="https://groups.google.com/a/sdsu.edu/d/optout" target="_blank">https://groups.google.com/a/<wbr>sdsu.edu/d/optout</a>.<br>
</font></span></div><br></div>