Hi, Herbert,
The scalability of current cryptd implementation is not good. So a
per-CPU cryptd kthread implementation is necessary. The per-CPU kthread
pool implementation need to consider many issues such as CPU hotplug, so
I suggest to base cryptd kthread implementation on workqueue, that is,
cr
On Fri, Jan 16, 2009 at 11:10:36AM +0800, Huang Ying wrote:
>
> The scalability of current cryptd implementation is not good. So a
> per-CPU cryptd kthread implementation is necessary. The per-CPU kthread
> pool implementation need to consider many issues such as CPU hotplug, so
> I suggest to bas
On Fri, 2009-01-16 at 11:31 +0800, Herbert Xu wrote:
> On Fri, Jan 16, 2009 at 11:10:36AM +0800, Huang Ying wrote:
> >
> > The scalability of current cryptd implementation is not good. So a
> > per-CPU cryptd kthread implementation is necessary. The per-CPU kthread
> > pool implementation need to
On Thu, Jan 22, 2009 at 10:32:17AM +0800, Huang Ying wrote:
>
> This is the first attempt to use a dedicate workqueue for crypto. It is
> not intended to be merged. Please feedback your comments, especially on
> desgin.
Thanks for the patch!
> + spin_lock_init(&cpu_queue->lock);
Sinc
On Thu, 2009-01-22 at 11:04 +0800, Herbert Xu wrote:
> On Thu, Jan 22, 2009 at 10:32:17AM +0800, Huang Ying wrote:
> >
> > This is the first attempt to use a dedicate workqueue for crypto. It is
> > not intended to be merged. Please feedback your comments, especially on
> > desgin.
>
> Thanks for
On Thu, Jan 22, 2009 at 03:15:58PM +0800, Huang Ying wrote:
>
> Yes. Except that, now we do not need a spin lock really. I think the
> spin lock may be useful if we enqueue a request on other CPU's queue to
> do load balance. And if it is possible that the work_struct to be
> executed on CPU other
On Thu, 22 Jan 2009 10:32:17 +0800 Huang Ying wrote:
> Use dedicate workqueue for crypto
>
> - A dedicated workqueue named kcrypto_wq is created.
>
> - chainiv uses kcrypto_wq instead of keventd_wq.
>
> - For cryptd, struct cryptd_queue is defined to be a per-CPU queue,
> which holds one str
On Fri, Jan 23, 2009 at 11:07:06PM -0800, Andrew Morton wrote:
>
> > +int cryptd_enqueue_request(struct cryptd_queue *queue,
> > + struct crypto_async_request *request)
> > +{
> > + int cpu, err, queued;
> > + struct cryptd_cpu_queue *cpu_queue;
> > +
> > + cpu = get_cpu(
Sorry for my late. Last week is Chinese new year holiday.
On Sat, 2009-01-24 at 15:07 +0800, Andrew Morton wrote:
> On Thu, 22 Jan 2009 10:32:17 +0800 Huang Ying wrote:
>
> > Use dedicate workqueue for crypto
> >
> > - A dedicated workqueue named kcrypto_wq is created.
> >
> > - chainiv uses k
I design a performance testing for cryptd with a little modified
dm-crypt. The testing script is as follow:
script begin ---
#!/bin/sh
dmc_create()
{
# Create a crypt device using dmsetup
dmsetup create $2 --table "0 `blockdev --getsize
On Thu, 2009-01-22 at 15:30 +0800, Herbert Xu wrote:
> On Thu, Jan 22, 2009 at 03:15:58PM +0800, Huang Ying wrote:
The only needed spin lock usage is cryptd_tfm_in_queue() now, I think we
can protect that via RCU, what's your opinions?
> > Yes. Except that, now we do not need a spin lock really.
On Mon, Feb 02, 2009 at 11:30:25AM +0800, Huang Ying wrote:
>
> The only needed spin lock usage is cryptd_tfm_in_queue() now, I think we
> can protect that via RCU, what's your opinions?
We should just get rid of cryptd_tfm_in_queue since it's only used
for debugging.
> But I think the simplest
12 matches
Mail list logo
