From a87ff5291b283385c23beea281c7735c8f3d3ca3 Mon Sep 17 00:00:00 2001 From: Thomas Schmitt Date: Sat, 5 Mar 2016 15:02:19 +0000 Subject: [PATCH] Added answer to "Why is simultaneous burning with multiple drives so slow ?" --- libisoburn/trunk/doc/faq.wiki | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/libisoburn/trunk/doc/faq.wiki b/libisoburn/trunk/doc/faq.wiki index 992d5540..adb2f360 100644 --- a/libisoburn/trunk/doc/faq.wiki +++ b/libisoburn/trunk/doc/faq.wiki @@ -21,6 +21,8 @@ Burning: [#scsi_error What does that SCSI error message mean ?] + [#concurrent_burn Why is simultaneous burning with multiple drives so slow ?] + Imaging: [#edit_files Is there a way to edit files inside the ISO image ?] @@ -197,6 +199,13 @@ system kernel. If this does not help, contact [https://lists.gnu.org/mailman/listinfo/bug-xorriso GNU xorriso mailing list] and be ready for experiments. +===== Why is simultaneous burning with multiple drives so slow ? ===== #concurrent_burn + +It is a known regression of Linux since about 2010 that operating more than +one drive at the same time via SCSI commands shows severe throughput problems. +See [ConcurrentLinuxSr the wiki page about this problem] which offers a +workaround in userspace (your milage may vary), explanantions of the +reason, and a link to a remedy proposal by courageous kernel modification. ---------------------------------------------------------------------------- '''Imaging'''