similar to: Mechanism for Enqueue and Dequeue?

On Thursday, July 18, 2019 8:24 PM, Michael S. Tsirkin wrote: > /* > * balloon_page_alloc - allocates a new page for insertion into the balloon > - * page list. > + * page list. > * > - * Driver must call it to properly allocate a new enlisted balloon page. > - * Driver must call balloon_page_enqueue before definitively removing it > from > - * the guest

Hi, I''m adding a queuing disc. inside kernel. I am confused that it seems few other qdiscs allocate memory dynamically. Is it invalid to use memory calls like molloc or just a suggest that do not use it often? Thanks for your help. bon ----------------------------------------------------------------- < 每天都 Yahoo!奇摩 > www.yahoo.com.tw

I notice one other small problem with my modified version of SFQ. The fact that packets can be dropped at dequeue time is incompatible with the way HTB (and probably CBQ and others modeled on it) keep statistics. When I fill a low rate queue causing packets to expire and be dropped at dequeue I get interesting statistics like this: This is my variant of SFQ qdisc plfq 8016: dev eth1 ... Sent

I read the sched/qdiscs code from kernel source ... and I have some questions : When the .enqueue, .dequeue, .drop, .requeue functions are called ? What is the event that triggers them and how often this event apears ( per second ? ) ? When a qdisc is dequeued ( when it''s limit is reached ) ? Thanks _______________________________________________ LARTC mailing list /

Lots of comments bitrotted. Fix them up. Fixes: 418a3ab1e778 (mm/balloon_compaction: List interfaces) Reviewed-by: Wei Wang <wei.w.wang at intel.com> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- fixes since v3: teaks suggested by Wei mm/balloon_compaction.c | 71 ++++++++++++++++++++++------------------- 1 file changed, 39 insertions(+), 32 deletions(-) diff --git

Lots of comments bitrotted. Fix them up. Fixes: 418a3ab1e778 (mm/balloon_compaction: List interfaces) Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- mm/balloon_compaction.c | 73 +++++++++++++++++++++++------------------ 1 file changed, 41 insertions(+), 32 deletions(-) diff --git a/mm/balloon_compaction.c b/mm/balloon_compaction.c index d25664e1857b..9cb03da5bcea 100644 ---

From: Wei Wang <wei.w.wang at intel.com> A #GP is reported in the guest when requesting balloon inflation via virtio-balloon. The reason is that the virtio-balloon driver has removed the page from its internal page list (via balloon_page_pop), but balloon_page_enqueue_one also calls "list_del" to do the removal. This is necessary when it's used from balloon_page_enqueue_list,

From: Wei Wang <wei.w.wang at intel.com> A #GP is reported in the guest when requesting balloon inflation via virtio-balloon. The reason is that the virtio-balloon driver has removed the page from its internal page list (via balloon_page_pop), but balloon_page_enqueue_one also calls "list_del" to do the removal. This is necessary when it's used from balloon_page_enqueue_list,

Hi, Does the ''tc'' tool show dequeue statistics? If so what switches does one use to see this. If not which is the best way to see these statistics? Thanks.

Hi all. I''m quite new to the concepts of the "traffic control" framework, and I''ve got a programming-related question. Hopefully someone has the answer... Is it possible, either for the device driver itself or for a userspace program, to get information about how many packets are currently queued for a given network interface? Let''s describe it a little

From: Wei Wang <wei.w.wang at intel.com> A #GP is reported in the guest when requesting balloon inflation via virtio-balloon. The reason is that the virtio-balloon driver has removed the page from its internal page list (via balloon_page_pop), but balloon_page_enqueue_one also calls "list_del" to do the removal. This is necessary when it's used from balloon_page_enqueue_list,

On Tue, Apr 23, 2019 at 04:45:28PM -0700, Nadav Amit wrote: > Introduce interfaces for ballooning enqueueing and dequeueing of a list > of pages. These interfaces reduce the overhead of storing and restoring > IRQs by batching the operations. In addition they do not panic if the > list of pages is empty. > > Cc: "Michael S. Tsirkin" <mst at redhat.com> > Cc:

Hello, Normally, in addition to such qdisc scheduler mechanisms as FIFO, PQ, WRR, WFQ, are there any more? Then, there is a confusion on scheduler in Linux enviroment: Assume there is a qdisc, such as RED as a leaf qdisc in a router, we know, if there is packet which want to enqueue the packet, the Function red_enqueue is called, but when the packet leave the queue(when the Function red_dequeue

On Fri, Jan 26, 2018 at 08:15:28PM +0100, Corentin Labbe wrote: > Hello > > The current crypto_engine support only ahash and ablkcipher request. > My first patch which try to add skcipher was Nacked, it will add too many functions > and adding other algs(aead, asymetric_key) will make the situation worst. > > This patchset remove all algs specific stuff and now only process

Hi Corentin, I am fine with this proposal: it is generic enough and I have been able to test and run the crypto engine with aead_request without changing any single line of code. This is what I need to be able to send the AEAD extension of the stm32-cryp driver (successfully tested with your engine upgrade proposal). I have also tested the stm32-hash patch. Note that stm32-cryp (new

On Thu, Feb 15, 2018 at 11:51:00PM +0800, Herbert Xu wrote: > On Fri, Jan 26, 2018 at 08:15:28PM +0100, Corentin Labbe wrote: > > Hello > > > > The current crypto_engine support only ahash and ablkcipher request. > > My first patch which try to add skcipher was Nacked, it will add too many functions > > and adding other algs(aead, asymetric_key) will make the

> On May 3, 2019, at 6:25 PM, Nadav Amit <namit at vmware.com> wrote: > >> On Apr 25, 2019, at 4:54 AM, Nadav Amit <namit at vmware.com> wrote: >> >> VMware balloon enhancements: adding support for memory compaction, >> memory shrinker (to prevent OOM) and splitting of refused pages to >> prevent recurring inflations. >> >> Patches

> On May 3, 2019, at 6:25 PM, Nadav Amit <namit at vmware.com> wrote: > >> On Apr 25, 2019, at 4:54 AM, Nadav Amit <namit at vmware.com> wrote: >> >> VMware balloon enhancements: adding support for memory compaction, >> memory shrinker (to prevent OOM) and splitting of refused pages to >> prevent recurring inflations. >> >> Patches

Hello everybody, I try to work with TC for a little while in my study and there still are a few questions that I can\''t find any answer anywhere. Firts about qdisc and classes: - What is exactly the difference between qdsic and class ? They are so \"intimately tied together\" that i\''m not sure not make the difference. Why can\''t we have a qdsic HTB with

Hi LLVM-Dev Team, I am a graduate student working on compilation for heterogeneous multi-cores. As a part of my project, I need to extend llvm by adding a new data type for a commonly used data structure like queue. Could you please mention if there been any prior work on extending the llvm frontend to accommodate these kind of new data types and parse it to get LLVM-IR. Can you also advice on