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	IanWho's bLog : Profiling IO Bound applications with Visual Studio Team System – Part One
		And for almost all CPU bound applications the sampling mode is the mode to use as it collects much smaller data files as compared to instrumentation profiling.
		IO Bound – An IO bound application is an application where its speed is dependant on waiting for IO operations to complete.
		In general, IO bound issues are caused by things such as moving data from your hard drive into memory in some inefficient fashion.
	blogs.msdn.com /ianhu/archive/2006/06/21/641687.aspx (572 words)

	IO bound - Wikipedia, the free encyclopedia
		IO bound refers to a condition in which the time it takes to complete a computation is determined principally by the speed of input/output(IO) operations to memory.
		IO, sometimes written as I/O, refers to operations that transfer data into or out of the main memory of a computer from or to peripheral devices.
		It is possible for a computer program to alternate between being IO bound and being compute bound during different phases of the job, but this usually means that the overall computation is IO bound.
	en.wikipedia.org /wiki/IO_bound (339 words)

	CPU bound - Wikipedia, the free encyclopedia
		CPU bound refers to a condition where the time to complete a computation is determined principally by the speed of the central processor and main memory.
		Insofar as a program is CPU bound, it has the potential to run faster if a better algorithm can be found to accomplish the computation, or if a faster processor/memory can be used.
		The usefulness of the distinction between IO bound and compute bound is based on the empirical observation that many of the uses of computers involve doing a small amount of work to each element of a large set of data, which led to the conclusion that such problems are inherently IO bound.
	en.wikipedia.org /wiki/CPU_bound (242 words)

	Io, Greek Mythology Link.
		Io, who is one of the Three Main Ancestors, was turned into a cow after having been seduced by Zeus, and forced to wander over the whole world until she settled in Egypt.
		Io is said to have been turned into a cow, either by Hera or Zeus, and then forced to wander over the whole world.
		Io continued her wanderings through Scythia and Cimmeria (to the north of the Black Sea), met in Caucasus the bound Prometheus 1, and finally she came to Egypt.
	homepage.mac.com /cparada/GML/Io.html (1802 words)

	Io
		Io was an Argive princess and the daughter of Inachus, an ancient hero or river god of Argos.
		This tale she eventually ended up telling to Prometheus, while he was bound to his rock.
		Io, and the myth surrounding her, is important in several respects.
	www.pantheon.org /articles/i/io.html (407 words)

	Operating Systems Lecture Notes Lecture 6 CPU Scheduling
		The priorities of IO bound processes and interactive processes therefore tend to be high and the priorities of CPU bound processes tend to be low (which is what you want).
		All of the IO bound processes execute their bursts quickly and queue up for access to the IO device.
		Result is poor utilization of IO device - it is busy for a time while it processes the IO requests, then idle while the IO bound processes wait in the run queues for their short CPU bursts.
	www.cag.lcs.mit.edu /~rinard/osnotes/h6.html (2370 words)

	2006 December \| MySQL Performance Blog
		IO Bound workload is quite different from CPU bound one, which happens when your working set (normally only fraction of your database) fits in memory.
		So for IO bound applications you will need to add counts for all messages, read messages etc, make sure they are updated (ie use triggers) and make sure all selects use index for ORDER BY..
		For IO bound applications Clustering (data locality) also becomes very important - if Innodb tables are used having simply auto_increment id on messages would likely be much slower than (user_id,sub_id) combined primary key as this one will cluster messages for same user_id and normally allow to fetch them all using only few physical IOs.
	www.mysqlperformanceblog.com /2006/12 (2637 words)

	Argus
		The myth's outline is that Zeus had seduced Io when Hera arrived on the scene.
		Hera was furious about the death of her servant Argus, and "Juno [Hera] retrieved those eyes to set in place / among the feathers of her bird and filled / his tail with starry jewels" (I.721-3), creating the eyes of the peacock.
		In Prometheus Bound, Argus is the child of Gaia, but Ovid is silent on the issue of Argus's lineage.
	www.pantheon.org /articles/a/argus.html (578 words)

	A MAGNETIC SIGNATURE AT Io: INITIAL REPORT FROM THE GALILEO MAGNETOMETER
		They assumed that Io's conductivity was so large that the material on the entire magnetic flux tube that threaded Io was frozen in and was dragged not only through the magnetosphere but also through the conducting ionosphere of Jupiter at the northern and southern feet of the tube.
		Reconnection links Io's field to Jupiter's and the foot of the Io flux tube is expected to be a distinct region in which much of the power generated by the Io interaction is dissipated in Jupiter's ionosphere, consistent with the evidence of isolated signatures at the foot of Io's flux tube (41).
		The recent evidence that Io has a large, molten iron-iron sulfide core (43) and that adequate heating to drive a dynamo field is present (31, 38) suggests that the inference of intrinsic dynamo action is physically reasonable.
	www.igpp.ucla.edu /galileo/doc/sci273/text.htm (3672 words)

	70331-1 - State of Washington v. Librado Sanchez
		Based on former RCW 9.94A.110 (2000), which provides that the IO may make argument regarding 'the sentence to be imposed,' the majority concludes that the IO is not bound by the plea agreement.
		Similarly, by concluding that an IO is not under the control of the prosecutor and is thus independent, the majority overlooks former RCW 9.94A.440(2)(b)(i) which provides for such control.
		An IO bound by a plea agreement is bound in the same way that the prosecuting attorney is bound.
	www.mrsc.org /mc/wacourts/slip/supreme/703311DI1.htm (3040 words)

	NIC.IO Dispute Resolution Policy
		The proceedings before the WIPO Arbitrator shall be initiated by the filing of a Request for Arbitration with the WIPO Arbitration and Mediation Center.
		NIC.IO is bound to implement any order or decision of a court that is enforceable against it and any order or decision of a WIPO Arbitrator.
		The Applicant waives any right to pursue a claim against NIC.IO arising out of or in connection with the implementation by NIC.IO of any such order or decision, including the right to seek an injunction barring their implementation.
	www.nic.io /dres.html (640 words)

	XLISP-PLUS - SYMBOLS
		The symbols '+', '++', and '+++' are bound to the most recent three input expressions.
		The symbols '', '' and '' are bound** to the most recent three results.
		The symbol '-' is bound to the expression currently being evaluated.
	www.nku.edu /~longa/public_html/classes/xlisp/cldoc_19.html (713 words)

	CS322: CPU Scheduling
		It is also possible in some systems to have computation and IO for a single process overlap to some extent: a process may start an IO burst and continue computing until it reaches a point where further computation cannot proceed.
		In the case of IO devices, this is normally handled by the interrupt handlers - when an interrupt occurs, the current process is returned to the ready list (its IO request is complete) and the IO operation requested by the next process in line is started.
		Of course, IO interrupts may steal the CPU from time to time; but after each interrupt, control passes back to the process that was running when it occurs.
	www.cs.gordon.edu /courses/cs322/lectures/cpu_scheduling.html (5733 words)

	[No title]
		The V20 is actually an 8088 pin compatible 80188 minus the onboard IO devices, and V30 ditto 8086.
		This is definitely IO bound, with very optimal drivers.
		It should be IO bound!) I performed these five tests first with the 8086 installed, then after replacing the 8086 with the V30.
	winramturbo.com /fnsp/doc/1985/1985-09-30-tj-nec-processors.txt (803 words)

	[No title]
		In the case of IO, many processes may be waiting for the same IO, so the process is made to wait and is played on the device queue.
		When it gets some interrupt, it is again put on a queue, when it does some IO, it is put on a queue, when its cpu time expires, it is again, put on a queue.
		IO bound processes spend a lot of their time doing IO, while a CPU bound process doesn't do much IO, but uses a lot of CPU.
	www.sci.brooklyn.cuny.edu /~philaris/cis25/procthread.html (2081 words)

	[29.04] Upper Bound On Io's Heat Flow (Site not responding. Last check: 2007-10-27)
		Analysis of the temperatures and areas of Io's observed thermal anomalies yields an upper bound on Io's total heat flow.
		We find a distribution function that allows an assessment of the heat flow from undetected, cooler anomalies, and predicts a limiting temperature of about 90-95 K. This temperature is in agreement with measured Voyager IRIS and Galileo PPR nighttime minimum temperatures.
		As a result of this, we conclude (with few possible exceptions, e.g., high mountains) that Io is covered completely by lava in various stages of cooling.
	www.aas.org /publications/baas/v32n3/dps2000/355.htm (203 words)

	CS322 Project 1
		Although the simulated processes will not actually perform any ordinary computation or IO activity, they will behave as if they are doing so.
		The average lifetime of a process is a simulation parameter, and will be used as the mean for generating random lifetimes for each process as it is created.
		Note that, on a system with only one process, the performance score should be close to 1, since it will either be doing computation or io continually throughout the simulation.
	www.cs.gordon.edu /courses/cs322/projects/p1 (1656 words)

	a/dio-lt (Site not responding. Last check: 2007-10-27)
		All real IO is done in kernel space, the user just gets a window into it..
		Either you're IO bound or you aren't, and if you're IO bound and your memory is slower than your IO then it's not something the OS should do all that much about.
		Yes, there are still machines with bad memory subsystems compared to their IO systems, but Linus "the Oracle" Torvalds is convinced that they are a short-lived oddity in the industry and shouldn't be designed for, the same way you shouldn't design for direct-mapped caches or for machines without paging hardware.
	lwn.net /1998/1217/a/dio-lt.html (617 words)

	Tweak your IO performance for faster runtime
		Many applications process large volumes of data, and IO is one of those areas where small differences in implementation can have a large impact on performance.
		Character IO is bad, but unbuffered character IO is terrible.
		Self-buffered IO code runs 2 to 4 times faster than buffered streams and 4 to 40 times faster than unbuffered IO.
	www.javaworld.com /javaworld/jw-11-2000/jw-1117-performance.html (1687 words)

	Photo Matt » MySQL Camp Google Notes
		He’s IO bound, but he can easily trade-off performance for data size etc. Shrink DB by 2x.
		Doesn’t know about SMP problems, because they’re IO bound.
		IO is not much work to fix either, InnoDB uses background threads to do IO because it doesn’t trust Linux async IO.
	photomatt.net /2006/11/10/mysql-camp-google-notes (1121 words)

	Compute Bound or IO Bound? (Site not responding. Last check: 2007-10-27)
		Applications can either be classified as compute bound or IO bound
		IO bound means that increasing the IO bandwidth to the processor will reduce execution time
		IO bandwidth can be bandwidth between processors, bandwidth between processors and memory, bandwidth between processors and external IO devices (i.e, disks).
	www.erc.msstate.edu /~reese/EE8063/html/tera_1/tsld010.htm (82 words)

	Asynchronous Http Handlers
		The code in Listing 1, by the way, is CPU bound, and therefore works fine as a synchronous handler.
		When the Http handler code makes an IO request, latency is almost certain to occur, and the OS puts thread 1 into an efficient wait-state (to wait for the IO to complete).
		When an IO-bound Http handler is under a heavy load, the relationship described between thread 1 and thread 2 continues to occur between thread 2 and thread 3, thread 3 and thread 4, and so on.
	www.developer.com /net/print.php/10916_1383181_1 (604 words)

	Huge Difference or Not so Much? - vBulletin Community Forum
		More specifically are you IO bound at the DB or IO bound on the web server process (very unlikely the web server is IO bound since you're never looking at more than a MB of data and all modern OSes have a filesystem cache).
		Currently my box is bound by the CPU, however, I don't understand why, so I have a post here asking about it.
		You are likely to only be IO bound during a search operation when the DB needs to do table scans.
	www.vbulletin.com /forum/showthread.php?p=817417 (1871 words)

	[Exim] Re: Exim appears to be IO Bound
		[Exim] Re: Exim appears to be IO Bound
		Previous message: [Exim] Re: Exim appears to be IO Bound
		With only 2 disks, in a mirrored config, you are seriously IO bound on disk - you really only effectively have a single spindle (the second effectively has to follow the first - the main effect if you have probably reduced your SCSI bandwidth).
	www.exim.org /pipermail/exim-users/Week-of-Mon-20000110/016204.html (508 words)

	Prometheus Bound: Io's Monologue
		IO: I know not how I can deny your wish,
		By gad-fly, keen of fang, with frenzied bounds
		Prometheus Bound: Quotes - A collection of quotations from the play.
	www.monologuearchive.com /a/aeschylus_009.html (270 words)

	Multiprocessing
		Thread resume reqires that we move the about-to-be-started thread from whatever queue it's on to the ready-queue, atomically.
		I wonder if the IO is binding stuff and that updates the binding stack pointer.
		Write a test case at some point, meanwhile ignore it Notes on fd-streams: (these might want to go into cliki at some stage) do-output (fd-stream.lisp) for file output uses a serve-event handler to schedule output for later if it looks like writing it now would block.
	www.telent.net /lisp/mp.html (2041 words)

	Resource Management (Site not responding. Last check: 2007-10-27)
		Purely heterogeneous systems that differ in both capability and compatibility [Bon93, KRK94, CCG95], tend to consider the capability of a host to provide the range of resources required by a process or job and distribute the workload appropriately.
		These results imply that not only should the requirements of a process be matched to host capabilities in a heterogeneous system, but homogeneous systems may also benefit by controlling the mix of CPU, memory and IO bound process types on any one host.
		Thus it is not only bottlenecking of the CPU that is a potential source of system degradation, but bottlenecking of IO as well.
	www.mcs.vuw.ac.nz /~kris/thesis/node15.html (348 words)

	CodeGuru: Programming Insights.... Asynchronous Http Handlers (Site not responding. Last check: 2007-10-27)
		All IO requests that you make in the process of creating the http response should be done asynchronously by using Begin() and End() methods, rather than their synchronous equivalents.
		You should call BeginRead() such that it calls your code back when the read has completed; meanwhile, your thread can be returned to the pool so that it is not wasted on an idle block.
		In addition to using asynchronous Begin() and End() methods exclusively for all of your "blocking" IO calls, your asynchronous handler must also implement asynchronous BeginProcessRequest() and EndProcessRequest() methods that are called asynchronously by ASP.Net itself.
	www.codeguru.com /Csharp/.NET/net_asp/article.php/c5357 (1557 words)

	OSNews.com
		Linux users are always saying that linux become more and more faster, but linus is saying the opposite.
		There have been some degradations in I/O performance between 2.4 and 2.6.
		Although in spite of what Linus says, there have been many benchmarks proving the opposite -- that the 2.6 series are in generally faster than 2.4 series.
	www.osnews.com /comment.php?news_id=10178&offset=30&rows=40 (1217 words)

	Terms and Conditions for the Registration of IO Domain Names
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		The non-refundable fee covers a period of one (1) year for each new registration, and one (1) year for each renewal, and includes any permitted modification(s) to the domain name's record during the covered period.
	www.nic.io /terms.html (2271 words)

	Azul releases new server appliance that processes J2EE tasks
		The real question is how we get rid of the "main IO issues" in the long term..
		I'm looking at cluster-durable JMS queues and topics as one good example of achieving scalable performance for messaging (to/from or within an application, not as an ESB.) For database scalability, a well-built pure-Java database should now easily be able to achieve the highest non-clustered throughput numbers (running on this box) for any benchmark.
		It has an appreciable effect but it is minimized through buffered/prefetched I/O. When it goes GA you can expect to see the biggest SPECjAppServer number ever.
	www.theserverside.com /news/thread.tss?thread_id=29037 (3600 words)

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