Hi Max, Could you try passing msize=262144 for 9p mount point and post the results?
Host: [root@llm116 media]# ls -lhas file 1.1G -rw-r--r-- 1 root root 1.0G Apr 26 11:05 file [root@llm116 media]# dd if=/dev/zero of=file bs=1M count=1024 1024+0 records in 1024+0 records out 1073741824 bytes (1.1 GB) copied, 0.700828 s, 1.5 GB/s [root@llm116 media]# time cp file file2 real 0m6.353s user 0m0.007s sys 0m1.520s VM: [root@qemu-img-64 pass]# time cp file 9p_file real 0m12.261s user 0m0.154s sys 0m2.582s [root@qemu-img-64 pass]# dd if=/dev/zero of=file.9 bs=1M count=1024 1024+0 records in 1024+0 records out 1073741824 bytes (1.1 GB) copied, 2.07335 s, 518 MB/s [root@qemu-img-64 pass]# mount [snip] v_pass on /pass type 9p (rw,trans=virtio,version=9p2000.L,msize=262144) [/snip] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/965867 Title: 9p virtual file system on qemu slow To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/965867/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
