Re: [osv-dev] Re: OSv in QEMU blog

[Dor Laor]

Impressive work and numbers! Worth to link the presentation from the blog
since I was looking for those numbers too.

On Fri, Nov 13, 2020 at 12:29 PM Waldek Kozaczuk 
wrote:

> Fotis,
>
> Congratulations on your article and diploma! I have looked at the slides -
> https://github.com/foxeng/diploma/blob/master/slides.pdf - but I cannot
> read Greek :-)
>
> Regards,
> Waldek
>
> PS. It would be nice to see some improved tooling around virtio-fs in
> capstan and so on.
> On Thursday, November 12, 2020 at 5:09:07 PM UTC-5 Fotis Xenakis wrote:
>
>> Hello everyone,
>>
>> OSv is featured in the most recent post on QEMU's blog [1], with regard
>> to its usage of virtio-fs. I was invited to write that post after the
>> virtio-fs devs showed interest in our use case. Also, I 'd like to
>> apologize for omitting to include you in the original discussion (should be
>> more inclusive in the future).
>>
>> Regards,
>> Fotis
>>
>> [1] https://www.qemu.org/2020/11/03/osv-virtio-fs/
>>
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> .
>

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[osv-dev] Re: OSv in QEMU blog

[Waldek Kozaczuk]

Fotis,

Congratulations on your article and diploma! I have looked at the slides 
- https://github.com/foxeng/diploma/blob/master/slides.pdf - but I cannot 
read Greek :-)

Regards,
Waldek

PS. It would be nice to see some improved tooling around virtio-fs in 
capstan and so on.
On Thursday, November 12, 2020 at 5:09:07 PM UTC-5 Fotis Xenakis wrote:

> Hello everyone,
>
> OSv is featured in the most recent post on QEMU's blog [1], with regard to 
> its usage of virtio-fs. I was invited to write that post after the 
> virtio-fs devs showed interest in our use case. Also, I 'd like to 
> apologize for omitting to include you in the original discussion (should be 
> more inclusive in the future).
>
> Regards,
> Fotis
>
> [1] https://www.qemu.org/2020/11/03/osv-virtio-fs/
>

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[osv-dev] Re: How to add a new malloc interface

[Waldek Kozaczuk]

Hi,

Welcome to the OSv community!

Obviously, you can easily add new malloc* function implementation to OSv. 
This would be a wrapper function on top of regular malloc and memset. But 
what would be a benefit of it comparing to this code:

auto *p = malloc(size);
memset(p, 'a', size);

My regards,
Waldek
On Wednesday, November 11, 2020 at 2:13:06 AM UTC-5 Lewis Tian wrote:

> Hi everyone,
> I want to add a new malloc interface in osv, such as "void 
> *malloc_with_default(size_t t, char c);".
> "malloc_with_default" accepts two args: the first is the malloc memory 
> bytes and the second is the default char to fill the memory.
>
> Therefore, the follow code will print "a".
>
> ```C
> #include 
> #include 
>
> int main(int argc, char *argv[]) {
> int size = 5;
> char *p = (char *)malloc_with_default(size, 'a');
> for (size_t i = 0; i < size; i++) {
> printf("%c", *(p+i));
> }
> return 0;
> }
> ```
>
> How can I do this? Could you please help me?
>
> Best regards,
> Lewis Tian
>

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