search for: nikolaev

> On Dec 7, 2016, at 10:27 AM, Viacheslav Nikolaev <viacheslav.nikolaev at gmail.com> wrote: > > > I believe it’ll always forward directly to raw_fd_ostream::write_impl(), which is calling the libc ::write(). > > Do you mean raw_fd_ostream somehow overrides the operator<< the code for which I extracted? > I cannot se...

Though it won't actually help to guard this: while (StaticList) - a fence here is needed... On Mon, Dec 26, 2016 at 9:20 AM, Viacheslav Nikolaev < viacheslav.nikolaev at gmail.com> wrote: > Ptr member of ManagedStaticBase is now atomic. > In ManagedStaticBase::RegisterManagedStatic we have such code: > > void *Tmp = Creator(); > > Ptr.store(Tmp, std::memory_order_release); > DeleterFn = Deleter;...

Hi I need to use hypercalls from HVM domain (e.g. HYPERVISOR_add_to_physmap). However, it does not work when I am trying to invoke it from HVM Linux guest. Basically, I don''t see that anything happens on hypervisor''s side. I also grep''ed the guest code for ''vmmcall''/''vmcall'' and did not find anything. Is it possible to do it at all?

On Wed, Dec 7, 2016 at 10:02 AM, Mehdi Amini via llvm-dev < llvm-dev at lists.llvm.org> wrote: > > > On Dec 7, 2016, at 1:52 AM, Viacheslav Nikolaev via llvm-dev < > llvm-dev at lists.llvm.org> wrote: > > > > This code from raw_ostream.h is really racy: > > > > raw_ostream &operator<<(StringRef Str) { > > // Inline fast path, particularly for strings with a known length. > > size_...

Ptr member of ManagedStaticBase is now atomic. In ManagedStaticBase::RegisterManagedStatic we have such code: void *Tmp = Creator(); Ptr.store(Tmp, std::memory_order_release); DeleterFn = Deleter; // Add to list of managed statics. Next = StaticList; StaticList = this; StaticList is not atomic and not guarded by any fence. The same applies to the members

This code from raw_ostream.h is really racy: raw_ostream &operator<<(StringRef Str) { // Inline fast path, particularly for strings with a known length. size_t Size = Str.size(); // Make sure we can use the fast path. if (Size > (size_t)(OutBufEnd - OutBufCur)) return write(Str.data(), Size); if (Size) { memcpy(OutBufCur, Str.data(), Size);

I've been testing both T400P and TE405P boards and I'm running into some kind of hard limit on the number of simultaneous calls. This is on x86 with 2 Athlon MP 2800+ CPUs running Fedora Core 1. Everything is fine up to 190 channels, but the 191st call fails every time with errors like: Dec 14 15:44:00 WARNING[1215]: Unable to start PBX on Zap/201-1 Dec 14 15:44:00 WARNING[1215]: Failed

...39;origine----- De?: Shannon Zhao [mailto:zhaoshenglong at huawei.com] Envoy??: mercredi 5 novembre 2014 09:00 ??: linux-kernel at vger.kernel.org Cc?: mst at redhat.com; peter.maydell at linaro.org; john.liuli at huawei.com; joel.schopp at amd.com; GAUGUEY R?my 228890; qemu-devel at nongnu.org; n.nikolaev at virtualopensystems.com; virtualization at lists.linux-foundation.org; peter.huangpeng at huawei.com; hangaohuai at huawei.com Objet?: Re: [RFC PATCH] virtio-mmio: support for multiple irqs On 2014/11/4 17:35, Shannon Zhao wrote: > As the current virtio-mmio only support single irq, so some...

...39;origine----- De?: Shannon Zhao [mailto:zhaoshenglong at huawei.com] Envoy??: mercredi 5 novembre 2014 09:00 ??: linux-kernel at vger.kernel.org Cc?: mst at redhat.com; peter.maydell at linaro.org; john.liuli at huawei.com; joel.schopp at amd.com; GAUGUEY R?my 228890; qemu-devel at nongnu.org; n.nikolaev at virtualopensystems.com; virtualization at lists.linux-foundation.org; peter.huangpeng at huawei.com; hangaohuai at huawei.com Objet?: Re: [RFC PATCH] virtio-mmio: support for multiple irqs On 2014/11/4 17:35, Shannon Zhao wrote: > As the current virtio-mmio only support single irq, so some...

...pec again and didn't see any explicit mentioning of memory barriers regarding the device side of the spec. There are several places where memory barriers are mentioned and these all are about the driver. Maybe they are omitted because they are implicit somehow? Please clarify. regards, Nikolay Nikolaev [1] https://www.freelists.org/post/luajit/Compiler-loadstore-barrier-volatile-pointer-barriers-in-general,1 [2] http://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-vol-3a-part-1-manual.pdf - 8.2.3.7 > > Thanks, > > -- > MST

Hi. -j IMQ is equal -j ACCEPT...? i mean it after -j IMQ packet don''t return in parent chain??? cause -j ACCEPT action accept the packet in the child chain and don''t return it to parent... example: ipt="iptables -t mangle" $ipt -N HTTP $ipt -A HTTP -j IMQ // after this packet packets go to -t nat tables? or // it return to parent chain (PREROUTING) in mangle?

I have submitted a patch to support mno-stack-arg-probe: https://bugs.llvm.org/show_bug.cgi?id=36221 Is there any specific procedure for someone to take a look at this and, hopefully, include the patch into the mainline? - Ruslan -------------- next part -------------- An HTML attachment was scrubbed... URL:

...measurements quite accurate. Perfctr-Xen consists of series of patches that need to be applied to Xen, Linux, perfctr. They are available at: http://people.cs.vt.edu/~rnikola/ The code is available under LGPL. It would be great to discuss if and how it can be integrated into Xen Thanks, Ruslan Nikolaev _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Hi, I have simple question about Skype. What are the methods of selecting packets which belongs to Skype?? I know about 7layer but I don''t belive that is only way. Is 7layer realy good and stable solution for routers which must handle more than 1000 users ? Thanks in advance Pozdrawiam Szymon Turkiewicz

...De : Shannon Zhao [mailto:zhaoshenglong at huawei.com] > Envoy? : mercredi 5 novembre 2014 09:00 > ? : linux-kernel at vger.kernel.org > Cc : mst at redhat.com; peter.maydell at linaro.org; john.liuli at huawei.com; joel.schopp at amd.com; GAUGUEY R?my 228890; qemu-devel at nongnu.org; n.nikolaev at virtualopensystems.com; virtualization at lists.linux-foundation.org; peter.huangpeng at huawei.com; hangaohuai at huawei.com > Objet : Re: [RFC PATCH] virtio-mmio: support for multiple irqs > > > On 2014/11/4 17:35, Shannon Zhao wrote: >> As the current virtio-mmio only supp...

Hi Nikolay, I poked at src/lib/virtio/virtq.lua a bit - I was surprised to find no explicit CPU memory barriers in the virtq implementation. These are typically required when using virtio on smp machines - the spec actually mention where barriers are necessary. Are the barriers implicit somehow for lua? I'd be curious to learn. Thanks, -- MST

Hi Nikolay, I poked at src/lib/virtio/virtq.lua a bit - I was surprised to find no explicit CPU memory barriers in the virtq implementation. These are typically required when using virtio on smp machines - the spec actually mention where barriers are necessary. Are the barriers implicit somehow for lua? I'd be curious to learn. Thanks, -- MST

As the current virtio-mmio only support single irq, so some advanced features such as vhost-net with irqfd are not supported. And the net performance is not the best without vhost-net and irqfd supporting. This patch support virtio-mmio to request multiple irqs like virtio-pci. With this patch and qemu assigning multiple irqs for virtio-mmio device, it's ok to use vhost-net with irqfd on

As the current virtio-mmio only support single irq, so some advanced features such as vhost-net with irqfd are not supported. And the net performance is not the best without vhost-net and irqfd supporting. This patch support virtio-mmio to request multiple irqs like virtio-pci. With this patch and qemu assigning multiple irqs for virtio-mmio device, it's ok to use vhost-net with irqfd on

Hi all. I configure my shaper with tc help, for it I use HTB, ESFQ and IMQ for ingress traffic. all users work through NAT, all traffic separate honestly between users, but I have one problem - interactive traffic (i.e. view HTML pages), when somebody download anything HTML pages opening very slowly... What can do I, to correct this problem??? P.S. all users (their http traffic) I mark with