Changeset 087dc22 for introduction/important/building-notes.xml

Timestamp:

09/18/2023 07:54:59 PM (9 months ago)

Author:

Xi Ruoyao <xry111@…>

Branches:

12.1, ken/TL2024, ken/tuningfonts, lazarus, plabs/newcss, python3.11, rahul/power-profiles-daemon, renodr/vulkan-addition, trunk, xry111/llvm18

Children:

69553e9

Parents:

33c1959a

git-author:

Xi Ruoyao <xry111@…> (09/18/2023 07:54:04 PM)

git-committer:

Xi Ruoyao <xry111@…> (09/18/2023 07:54:59 PM)

Message:

building-notes: Use bc instead of bash built-in for converting GB to B

It's more readable.

Also add an explanation about 2^30.

File:

• introduction/important/building-notes.xml (modified) (2 diffs)

introduction/important/building-notes.xml

@@ -365 +365 @@
     "echo 0-3 > /sys/fs/cgroup/$$/cpuset.cpus"
   sudo sh -c \
-    "echo $((8 << 30)) > /sys/fs/cgroup/$$/memory.high"
+    "echo $(bc -e '8*2^30') > /sys/fs/cgroup/$$/memory.high"
   (
     sudo sh -c "echo $BASHPID > /sys/fs/cgroup/$$/cgroup.procs"
@@ -379 +379 @@
       </phrase>
       <phrase revision='sysv'>
-        <literal>8589934592</literal> (expanded from
-        <userinput>$((8 &lt;&lt; 30))</userinput>) in the
+        <literal>8589934592</literal> (the output of
+        <userinput>bc -e '8*2^30'</userinput>, 2^30 represents
+        2<superscript>30</superscript>, i.e. a Gigabyte) in the
         <filename>memory.high</filename> entry
       </phrase>, a soft limit of memory usage is set.