Summarize Linux cache attempts

README.adoc

@@ -1696,7 +1696,17 @@ cat /sys/devices/system/cpu/cpu0/cache/index2/size
 +
 Checking `level` is needed, for example `level0` and `level1` represented the same level on Linux 4.15.
 +
-TODO: check not working. `/sys` files don't exist, and `getconf` values empty. Ticket inbound. Related:
+TODO: check not working. Breakdown:
++
+--
+** arm QEMU and GEM5, x86 GEM5: `/sys` files don't exist, and `getconf` values empty
+** x86 QEMU: `/sys` files exist, but `getconf` values still empty
+--
++
+We can also try to check simply by verifying if benchmarks are getting sped up by larger caches.
++
+Related:
++
 ** http://gem5-users.gem5.narkive.com/4xVBlf3c/verify-cache-configuration
 * Memory latency: TODO These look promising:
 +
@@ -1734,6 +1744,7 @@ grep numCycles m5out/stats.txt
 ....
 +
 TODO: why doesn't this exist:
++
 ....
 ls /sys/devices/system/cpu/cpu0/cpufreq
 ....