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hi, when i change the OBJ_ROOT and recompile the llvm, it's successful. but run following test, then the error occues: ----------------------------------------------------- [yue at RH9 obj]$ make -C ./test/Programs make: Entering directory `/home/yue/llvm/obj/test/Programs' make[1]: Entering directory `/home/yue/llvm/obj/test/Programs/SingleSource' make[2]: Entering directory `/home/yue/llvm/obj/test/Programs/SingleSource/UnitTests' make[3]: Entering directory...

Dear yueqiang, I tracked this down this morning, and it is a bug with our Python code that runs the tests. Essentially what is happening is that the code is finding the temporary directory it created the first time it ran the tests and believes that there are tests inside of it which it needs to run....

hi, I compile a pthread program using llvmgcc, but when i run pthread.ll, it show: ------------------ [yue at RH9 test]$ llvmgcc pthread.c -o pthread.ll [yue at RH9 test]$ ls pthread pthread.c pthread.ll pthread.ll.bc [yue at RH9 test]$ ./pthread.ll Creating thread 0 WARNING: Cannot resolve fn 'pthread_create' using a dummy noop function instead! ERROR; return code from pthread_create() is -...

I try to run lli with "--load=/lib/libpthread.so", but it shows: --------------------------------------------------- [yue at RH9 test]$ ./pthread.ll Error opening '/lib/libpthread.so.0': /lib/libpthread.so.0: symbol _errno, version GLIBC_2.0 not defined in file libc.so.6 with link time reference -load request ignored. Creating thread 0 WARNING: Cannot resolve fn 'pthread_create' using a dummy noop...

On Wed, 24 Dec 2003, yue wrote: > I try to run lli with "--load=/lib/libpthread.so", but it shows: > --------------------------------------------------- > [yue at RH9 test]$ ./pthread.ll > Error opening '/lib/libpthread.so.0': /lib/libpthread.so.0: symbol > _errno, version GLIBC_2.0 not de...

yue wrote: > hi, > about [LLVMdev] another question > > thanks > > yueqiang One other thing you might want to try is to put your object tree in a directory that is *not* inside of your source tree. Currently, we don't support using separate object trees that are subdirector...

From: Tonghao Zhang <xiangxia.m.yue at gmail.com> Open vSwitch and Linux bridge will disable LRO of the interface when this interface added to them. Now when disable the LRO, the virtio-net csum is disable too. That drops the forwarding performance. Fixes: a02e8964eaf9 ("virtio-net: ethtool configurable LRO") Cc: Micha...

From: Tonghao Zhang <xiangxia.m.yue at gmail.com> Open vSwitch and Linux bridge will disable LRO of the interface when this interface added to them. Now when disable the LRO, the virtio-net csum is disable too. That drops the forwarding performance. Fixes: a02e8964eaf9 ("virtio-net: ethtool configurable LRO") Cc: Micha...

Try llvmgcc pthread.c -o pthread.ll -pthread You have to link in the pthreads library, and I believe -pthread is all you need on a redhat 9 box. Kevin > -----Original Message----- > From: llvmdev-admin at cs.uiuc.edu [mailto:llvmdev-admin at cs.uiuc.edu] On > Behalf Of yue > Sent: Tuesday, December 23, 2003 11:43 PM > To: llvmdev at cs.uiuc.edu > Subject: [LLVMdev] pthread? > > hi, > > I compile a pthread program using llvmgcc, but when i run pthread.ll, it > show: > ------------------ > [yue at RH9 test]$ llvmgcc pthread.c -o pthread....

From: Tonghao Zhang <xiangxia.m.yue at gmail.com> Open vSwitch and Linux bridge will disable LRO of the interface when this interface added to them. Now when disable the LRO, the virtio-net csum is disable too. That drops the forwarding performance. Fixes: e59ff2c49ae1 ("virtio-net: disable guest csum during XDP set")...

From: Tonghao Zhang <xiangxia.m.yue at gmail.com> Open vSwitch and Linux bridge will disable LRO of the interface when this interface added to them. Now when disable the LRO, the virtio-net csum is disable too. That drops the forwarding performance. Fixes: e59ff2c49ae1 ("virtio-net: disable guest csum during XDP set")...

...e's size is about 960K, and the size of binary code generated by g++ is only 13K. Could anyone explain the difference between the two result? BWT: I rebuild the cfrontend in RH linux9.0, but when I build the hello.cpp the llvmG++ reports warnings too, it shows: ----------------------------- [yue at RH9 Shootout-C++]$ llvmg++ -v hello.cpp -o hello Reading specs from /home/yue/cfrontend/install/lib/gcc/i686-pc-linux-gnu/3.4-llvm/specs Configured with: '../src/configure' '--prefix=/home/yue/cfrontend/install '--disable-threads '--disable-nls '--disable-shared '-...

On Tue, Sep 29, 2020 at 2:23 PM Michael S. Tsirkin <mst at redhat.com> wrote: > > On Tue, Sep 29, 2020 at 09:58:06AM +0800, xiangxia.m.yue at gmail.com wrote: > > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > > > Open vSwitch and Linux bridge will disable LRO of the interface > > when this interface added to them. Now when disable the LRO, the > > virtio-net csum is disable too. That drops t...

On Tue, Sep 29, 2020 at 2:23 PM Michael S. Tsirkin <mst at redhat.com> wrote: > > On Tue, Sep 29, 2020 at 09:58:06AM +0800, xiangxia.m.yue at gmail.com wrote: > > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > > > Open vSwitch and Linux bridge will disable LRO of the interface > > when this interface added to them. Now when disable the LRO, the > > virtio-net csum is disable too. That drops t...

From: Tonghao Zhang <xiangxia.m.yue at gmail.com> This patches improve the guest receive performance. On the handle_tx side, we poll the sock receive queue at the same time. handle_rx do that in the same way. For more performance report, see patch 4. v5->v6: rebase the codes. Tonghao Zhang (4): net: vhost: lock the vqs on...

On 2018/07/22 3:04, xiangxia.m.yue at gmail.com wrote: > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > Factor out generic busy polling logic and will be > used for in tx path in the next patch. And with the patch, > qemu can set differently the busyloop_timeout for rx queue. > > Signed-off-by: To...

On 2018/07/22 3:04, xiangxia.m.yue at gmail.com wrote: > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > Factor out generic busy polling logic and will be > used for in tx path in the next patch. And with the patch, > qemu can set differently the busyloop_timeout for rx queue. > > Signed-off-by: To...

On Tue, Sep 29, 2020 at 3:21 AM Michael S. Tsirkin <mst at redhat.com> wrote: > > On Mon, Sep 28, 2020 at 11:39:14AM +0800, xiangxia.m.yue at gmail.com wrote: > > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > > > Open vSwitch and Linux bridge will disable LRO of the interface > > when this interface added to them. Now when disable the LRO, the > > virtio-net csum is disable too. That drops t...

On Tue, Sep 29, 2020 at 3:21 AM Michael S. Tsirkin <mst at redhat.com> wrote: > > On Mon, Sep 28, 2020 at 11:39:14AM +0800, xiangxia.m.yue at gmail.com wrote: > > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > > > Open vSwitch and Linux bridge will disable LRO of the interface > > when this interface added to them. Now when disable the LRO, the > > virtio-net csum is disable too. That drops t...

From: Tonghao Zhang <xiangxia.m.yue at gmail.com> This patches improve the guest receive performance. On the handle_tx side, we poll the sock receive queue at the same time. handle_rx do that in the same way. For more performance report, see patch 4, 5, 6 Tonghao Zhang (6): net: vhost: lock the vqs one by one net: vhost: re...