[bootlin/training-materials updates] master: Boot time: update initramfs compression measurements (b9812504)

[Michael Opdenacker]

Repository : https://github.com/bootlin/training-materials
On branch  : master
Link       : https://github.com/bootlin/training-materials/commit/b98125042ed63d818c95c2f3328d084e99f1a42f

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commit b98125042ed63d818c95c2f3328d084e99f1a42f
Author: Michael Opdenacker <michael.opdenacker at bootlin.com>
Date:   Thu Oct 24 07:37:45 2019 +0200

    Boot time: update initramfs compression measurements
    
    Signed-off-by: Michael Opdenacker <michael.opdenacker at bootlin.com>


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b98125042ed63d818c95c2f3328d084e99f1a42f
 slides/boot-time-init-scripts3/boot-time-init-scripts3.tex | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/slides/boot-time-init-scripts3/boot-time-init-scripts3.tex b/slides/boot-time-init-scripts3/boot-time-init-scripts3.tex
index 0051aceb..776d5ebb 100644
--- a/slides/boot-time-init-scripts3/boot-time-init-scripts3.tex
+++ b/slides/boot-time-init-scripts3/boot-time-init-scripts3.tex
@@ -48,12 +48,12 @@ application and then switch to the final root filesystem with
 \item If you ship your initramfs inside a compressed kernel image, don't compress
       it \\
       (enable \code{CONFIG_INITRAMFS_COMPRESSION_NONE}).
-\item Otherwise, your initramfs data will be compressed twice, and
+\item Otherwise, by default, your initramfs data will be compressed twice, and
       the kernel will be bigger and will take a little more time to load
       and uncompress.
-\item Example on Linux 5.1 with a 2 MB initramfs uncompressed archive
-      on Beagle Bone Black: this allowed to reduce the kernel from 4.8 MB to 4.6 MB
-      and save about 120 ms of boot time.
+\item Example on Linux 5.1 with a 1.60 MB initramfs (tar archive size) 
+      on Beagle Bone Black: this allowed to reduce the kernel from 4.94 
+      MB to 4.74 MB (-200 KB) and save about 170 ms of boot time.
 \item Older examples:
 \end{itemize}
 \scriptsize