similar to: [PATCH 0 of 2] Scheduler: Implement yield for credit scheduler

Add a xen command-line parameter, sched_credit_tslice_ms, to set the timeslice of the credit1 scheduler. Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> diff -r 4a4882df5649 -r 782284c5b1bc xen/common/sched_credit.c --- a/xen/common/sched_credit.c Wed Aug 31 15:23:49 2011 +0100 +++ b/xen/common/sched_credit.c Thu Sep 01 16:29:50 2011 +0100 @@ -41,15 +41,9 @@ */ #define

From: Nate Studer <nate.studer@dornerworks.com> Add a utility function to update the rest of the timeslice accounting fields when updating the timeslice of the credit scheduler, so that capped CPUs behave correctly. Before this patch changing the timeslice to a value higher than the default would result in a domain not utilizing its full capacity and changing the timeslice to a value lower

Address some credit2 issues. This patch series, along with the recent changes to the cpupools interface, should address some of the strange credit2 instability. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Hello, This small series deals with some weirdness in the mechanism with which the credit scheduler choses what PCPU to tickle upon a VCPU wake-up. Details are available in the changelog of the first patch. The new approach has been extensively benchmarked and proved itself either beneficial or harmless. That means it does not introduce any significant amount of overhead and/or performances

Modified function runq_candidate in the credit 2 scheduler to have it consider hard and soft affinity when choosing the next vCPU from the run queue to run on the given pCPU. Function now chooses the vCPU with the most credit that has hard affinity and maybe soft affinity for the given pCPU. If it does not have soft affinity and there is another vCPU that prefers to run on the given pCPU, then as

Hi all, Since Xen 4.2.0, users can change time slice of the scheduler at runtime via xl command line, a very nice feature. However, it is not *correctly* implemented. Problem description -------------------- say you set the ''cap'' of one VM to 50 (a half core), -when setting the time slice to be *greater* than 30ms, the VM gets much *less* CPU cycles than its allocation -when

Hi, I''m a PhD student trying to add some load balancing code to the credit scheduler in order to fit some specific necessities. I''m trying to understand the credit scheduler code and I don''t quite get in which part of it a pcpu starts running a vcpu. I need to keep track of when a vpcu starts running in a cpu and when it stops. Any hint on that? I think that it would

In order to avoid high-frequency cpu migration, vcpus may in fact be scheduled slightly out-of-order. Account for this situation properly. Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> credit2: Fix erronous ASSERT In order to avoid high-frequency cpu migration, vcpus may in fact be scheduled slightly out-of-order. Account for this situation properly. v2: - Update comment

Hi, I have the following errors: Panic on CPU0: FATAL PAGE FAULT [error_code=0002] Faulting linear address: fbfb1100 More details in snapshots as below as I don''t have serial console cables thus unable to get full details of the errors which I will try to get one and send the full error if needed: http://choon.net/xenerrors/Image000.jpg http://choon.net/xenerrors/Image001.jpg

in _csched_cpu_pick(), as not doing so may result in the domain''s node-affinity mask (as retrieved by csched_balance_cpumask() ) and online mask (as retrieved by cpupool_scheduler_cpumask() ) having an empty intersection. Therefore, when attempting a node-affinity load balancing step and running this: ... /* Pick an online CPU from the proper affinity mask */

Hi, This patch intends to accurate vcpu weighting for CPU intensive job. The reason of this problem is that vcpu round-robin queue blocks large weight vcpus by small weight vcpus. For example, we assume following case on 2pcpu environment. (with 4domains (each domain has 2vcpus)) dom1 vcpu0,1 w128 credit 4 dom2 vcpu0,1 w128 credit 4 dom3 vcpu0,1 w256 credit 8 dom4 vcpu0,1 w512 credit 15

Aiming at a release later in October (before Xen Summit I would hope), I''d like to cut RC1 next week. Please indicate any bug fixes that so far may have been missed in the backports already done. Jan

Hello, I have a lots of questions about xen. Also, i would like to explore the code in order to have a better understand of (i hope) how xen works. I have untar the source code, but i''m really lost. I''m a newbie in thatbut i want to learn how to read the code. Can someone tell me how the archive is organized ? What folders are important or not ? In fact, i would

Hi, I was trying to add some printk in the credit scheduler to see how it works, but the printk seems not working. (it gives no output) But when I add printk in scheduler.c, it works pretty well. Does anyone know why? do I need to change some configuration file or something? Thanks very much! Best! Yours, Sisu _______________________________________________ Xen-devel mailing list

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Hi there Has anyone out there embarked on credit card processing in a Rails app through Australian gateways such as eway? I''m aware of Payment and ActiveMerchant, but neither support Australian gateways. It''s a little beyond me right now to hack these to work with eway. Any clues would be appreciated here. Richard Sandilands

What''s a good CC payment processor? (i.e. one that works well with Ruby / Rails (i.e. someone has already written and tested an API for it :-) ) Joe

What are most rails sites using to do credit card transactions? Has anyone written a module to run transactions through eFunds/ClearCommerce? If not, I will just rewrite my old PHP code... Thanks, Steven -- Posted via http://www.ruby-forum.com/.

Hi, Is there anybody out here who successfully processed credit cards using paypal webservice API? If then, please help me out. I get following error when ruby 1.8.2 is used: "10006 Version is not supported" Thanks in advance Binu -- Posted via http://www.ruby-forum.com/.

Hi, This question isn''t Rails-specific, but since Basecamp (& the family of premium 37signals apps) have the best implementation of credit-card processing I''ve seen, I''m hoping maybe DHH could lend an answer. Of course, anyone is welcome to chime in! # Some background Our nonprofit is building a Rails-driven store and donation center and our developer is