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| author | Frans Kaashoek <kaashoek@mit.edu> | 2019-07-27 20:18:40 -0400 |
|---|---|---|
| committer | Frans Kaashoek <kaashoek@mit.edu> | 2019-07-27 20:18:40 -0400 |
| commit | bdcd23ea49885b5fd205d2856073d3d89b3a9bc2 (patch) | |
| tree | b2a60dfe3abcc7d4acd967b7cc327511b04ac0eb | |
| parent | d82f43e0c747347de18737f4a446474207fb65b9 (diff) | |
| download | xv6-labs-bdcd23ea49885b5fd205d2856073d3d89b3a9bc2.tar.gz xv6-labs-bdcd23ea49885b5fd205d2856073d3d89b3a9bc2.tar.bz2 xv6-labs-bdcd23ea49885b5fd205d2856073d3d89b3a9bc2.zip | |
a bit more
| -rw-r--r-- | labs/lock.html | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/labs/lock.html b/labs/lock.html index 1278b53..5eddc58 100644 --- a/labs/lock.html +++ b/labs/lock.html @@ -72,7 +72,12 @@ workloads. <p>Some hints: <ul> - <li>Initially divide the free memory equally among the different CPUs. + <li>You can use the constant <tt>NCPU</tt> in kernel/param.h + <li>Let <tt>freerange</tt> give all free memory to the CPU + running <tt>freerange</tt>. + <li>The function <tt>cpuid</tt> returns the current core, but note + that you can use it when interrupts are turned off and so you will + need to turn on/off interrupts in your solution. </ul> <p>Run usertests to see if you don't break anything. |