Date: Thu, 22 Oct 2020 01:46:06 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 250516] Poor performance if running as guest OS on QEMU Message-ID: <bug-250516-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250516 Bug ID: 250516 Summary: Poor performance if running as guest OS on QEMU Product: Base System Version: 12.1-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: misc Assignee: bugs@FreeBSD.org Reporter: cdang_2000@yahoo.com Hi, I am new here and trying to find answers to the issue described below. We make PCI chip which mainly plugged in Linux systems. If I installed FreeBSD 12.1 on actual HW (i.e. x86), PCI throughput is fine and compatible with other Linux OSes like Ubuntu or CentOS. But, if I run it as a guest OS on QEMU, then the PCI throughput is very very low. This is compared to the same tests I run on Ubuntu or CentOS as guest OS on the same QEMU. So, I would like to know: 1. Do you have any report about the same situation: PCI throughput is very low if FreeBSD runs as guest OS on QEMU? 2. What kind of data you need me to capture in order for you to debug further? Please let me know. Thanks. -- You are receiving this mail because: You are the assignee for the bug.help
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