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@@ -23,3 +23,15 @@ with Virtualbox.
<pochu> ok, ty
2010-07-31, GNU Mach commit 039176372b4271f370ef38eb2ee5d43923a5b28b.
+
+# KVM-on-KVM (nested KVM)
+
+This seems sluggish like hell. jenkins.debian.net suffers badly from it: it
+takes like an hour to complete the "Loading additional components" step.
+
+It's actually slower than just running qemu-on-KVM.
+
+This doesn't happen with Linux L2 guests.
+
+Date: Tue, 11 Nov 2014
+https://www.mail-archive.com/kvm@vger.kernel.org/msg109570.html