<font><font face="tahoma,sans-serif">There are so many I/O requests waiting in the queue. I do not know the details of your storage systems, such as how many disks, how these disks are organized. I suggest you check your storage configuration.<br>
</font></font><br><div class="gmail_quote">2012/8/13 leon hsu <span dir="ltr"><<a href="mailto:liangxiongxu@gmail.com" target="_blank">liangxiongxu@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br clear="all">Hi, everybody,<br><br>I need you help:-)<br><font size="3"><font face="Calibri"><br>When I set the "I/O Trace Time Scale" in disksim_iosim to 1, the simulator shows a saturation error before.<br>
But when I change "I/O Trace Time Scale" in disksim_iosim to 10, the error disappeared.<br>
<br>I think that is because the "request arrival time" of the trace file is too small, which results that the number of the arriving requests in one second is more than ones that the simulator could deal with in one second. So I change the "I/O Trace Time Scale" in disksim_iosim to 10.<br>
<br>Next, I run it again, but the weired result made me crazy. When I ran disksim using my ascii trace file, the overall response time, almost 20000, is too big to believable.<br><br>Do anybody could tell me the reason and how to solve this problem. Thank you so much. I am so appreciated.<br>
<br><br>I set the "request arrival time" like the following style.<br><br>0.5 <br>0.75<br>1<br>1.2000<br>1.4000<br>1.5000<br>1.7000<br>2.0<br>.....<br><br><br>Hopefully, it could give some hints to find out my problem. Thanks.<span><font color="#888888"><br>
<br><br>Leon<br><br><br><br><br><br></font></span></font></font><br>
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