similar to: FW: [PATCH] Enabling ne2000 can work under event driven mechanism

Hi all: I use Charito to test xen default network(pcnet), and ne2000 performance, to my surpise, the average throughput of the default is 40Mbps, but the average throughput of ne2000 is 18Mbps, how can this happen? Besides, I see from xen wiki that : "The default network card which QEMU uses in Vt-x is AMD PCnet-PCI II Ethernet Controller. (*file tools/ioemu/hw/pcnet.c*). The reason to

Has anyone gotten networking in an HVM domain to work with the emulated NE2000 rather than the emulated PCnet? I have Linux running in an HVM domain just fine with pcnet. If I change the config file to say ne2000=1, the tun0, vif0.1, and xenbr0 devices get created in dom0, the kernel in the HVM domain brings up eth0 OK (NE2000 support is built into the kernel), but I can''t get dom0 to

LLVM3.8 version. https://bugs.llvm.org//show_bug.cgi?id=24233. The example can catch exception. But I use my own code for testing, CustomEHMemoryManager allocated memory address is very large, allocateCodeSection, allocateDataSection assigned address (more than 32 bit address space) is getting smaller and smaller. Cause registerEHFrames to fail. 3.9.1 or 4.0.0 version has been supported on win

okay. I guess I figured it out. It seems "poolalloc" needs to be put in llvm/projects/ directory. Haifeng On 8/23/07, Haifeng He <hehaifeng2nd at gmail.com> wrote: > A following question about how to install "poolalloc". I checked out > poolalloc from svn. But I had a problem of installing it. When I tried to run > "configure" with options

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A following question about how to install "poolalloc". I checked out poolalloc from svn. But I had a problem of installing it. When I tried to run "configure" with options "--with-llvmsrc" and "--with--llvmobj" pointing to where the source of my llvm and objs dir are (/home/usr/Tools/llvm, e.g.), "configure" complained error message

On 2015/6/4 9:13, Rusty Russell wrote: > Linhaifeng <haifeng.lin at huawei.com> writes: >> Hi, >> >> I'm a newbie and have a question about vring_new_virtqueue function. >> >> Why we set avail->flags to VRING_AVAIL_F_NO_INTERRUPT when no callbacks? >> I think we should set avail->flags to VRING_AVAIL_F_NO_INTERRUPT even if no callbacks. >

On 2015/6/4 9:13, Rusty Russell wrote: > Linhaifeng <haifeng.lin at huawei.com> writes: >> Hi, >> >> I'm a newbie and have a question about vring_new_virtqueue function. >> >> Why we set avail->flags to VRING_AVAIL_F_NO_INTERRUPT when no callbacks? >> I think we should set avail->flags to VRING_AVAIL_F_NO_INTERRUPT even if no callbacks. >

On Fri, 31 Aug 2007, Patrick Flannery wrote: > I can say that it does not for me,running x86_64, I have been generating > errors for submission by testing on a number of gnu utilities starting > with binutils. If you run into problems, please file bugs. -Chris > On Aug 31, 2007, at 6:11 PM, "Haifeng He" <hehaifeng2nd at gmail.com> wrote: > > Hi, > > I

I can say that it does not for me,running x86_64, I have been generating errors for submission by testing on a number of gnu utilities starting with binutils. Patrick On Aug 31, 2007, at 6:11 PM, "Haifeng He" <hehaifeng2nd at gmail.com> wrote: Hi, I am curious about if the current LLVM implementation can handle Linux kernel (or any particular version of Linux kernel). The

For help: Llvm generated instruction calls a function (extern), the function will have a SEH exception (EXCEPTION_ACCESS_VIOLATION), But JIT can not capture the exception of the EXCEPTION_ACCESS_VIOLATION. I saw Bug 24233. EXCEPTION_ACCESS_VIOLATION exception cannot be captured after modification. How to catch EXCEPTION_ACCESS_VIOLATION exceptions on win64 ? haifeng.qin at wellintech.com

On 2015/3/15 16:40, Michael S. Tsirkin wrote: > On Sun, Mar 15, 2015 at 02:50:27PM +0800, Linhaifeng wrote: >> Hi,Michael >> >> I had tested the start_xmit function by the follow code found that the tx queue's state is stopped and can't send any packets anymore. > > Why don't you Cc all maintainers on this email? > Pls check the file MAINTAINERS for the

On 2015/3/15 16:40, Michael S. Tsirkin wrote: > On Sun, Mar 15, 2015 at 02:50:27PM +0800, Linhaifeng wrote: >> Hi,Michael >> >> I had tested the start_xmit function by the follow code found that the tx queue's state is stopped and can't send any packets anymore. > > Why don't you Cc all maintainers on this email? > Pls check the file MAINTAINERS for the

DSA should be current against head, but poolalloc isn't. I've changed DSA a bit so it may not compile with poolalloc as is. I haven't had time to tackle updating poolalloc (either to head or to the dsa changes). If you want the version from the paper, try checking out llvm 1.8 or 1.9 and a dsa from around then. The dsa as used on the linux kernel and in the OS work is in a branch

Jingling, I faced the same issue in using LLVM for an introductory compiler course this semester. The way I am (optimistically) addressing it is that I have given the students a tarball of LLVM containing most of LLVM but very few optimizations. In particular, we've only given them a few essential transformations that the front-end or lli need, and any transformations used by those

Haifeng He wrote: > I updated the latest "poolalloc" code and the problem seems to have been fixed. > However, I am still having problem of running "poolalloc". > > After compilation finished, there are several dynamic libraries > created (libpoolalloc_rt.so, libpoolalloc_fl_rt.so and > LLVMDataStructure.so). I was not sure which one I should use so I just

On Aug 22, 2007, at 8:12 PM, Haifeng He wrote: > Hi, all > > I just downloaded the latest version of llvm. I am interested in the > data structure analysis of llvm described in this year PLDI paper, > titled "Making Context-Sensitive Points-to Analysis with Heap Cloning > Practical For The Real World". However, I could not find any source > code that seem to do the

Hi, all I just downloaded the latest version of llvm. I am interested in the data structure analysis of llvm described in this year PLDI paper, titled "Making Context-Sensitive Points-to Analysis with Heap Cloning Practical For The Real World". However, I could not find any source code that seem to do the analysis. I noticed that in llvm 1.9 release, there is a subdirectory named

I have installed CentOS 5 with all updates. Also I have 2 ne2000 isa cards. In recompiling the kernel, I have been trying to follow the instructions on this URL: http://wiki.centos.org/HowTos/Custom_Kernel The complete error message I get is: Makefile:403: /home/cs/redhat/BUILD/kernel-2.6.18/linux-2.6.18.i686/arch//Makefile: No such file or directory I have the following kernel and rpm

On 15 Dec 2016, at 07:26, haifeng.qin at wellintech.com via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > For help: > > for loop lead to stack overflow, want to actively reclaim stack memory of alloc instruction. > > How to actively reclaim stack memory ? This sounds as if you’re putting the alloca inside the loop, not in the entry basic block and reusing it. If you