runners: bench: Bumped sim up to 1 MiB + 1 hour + 128 MiB disk

This gives us much more room for activities.

It makes sense to keep the test disk small: easier parallelization,
heavier emubd with more test features, and if you're running into space
issues in a test, that usually just means you need to be more creative
with how the test is setup.

But for benches, we're interested what happens when we throw a ton of
data at the system.

Also defaulted to noop erases. 0xff erases behave more predictably,
which is useful for testing. But for benching, less work is faster.

benches/bench_rbyd.toml

@@ -7,6 +7,9 @@
 defines.BLOCK_SIZE = 'DISK_SIZE'
 defines.BLOCK_COUNT = 1
 
+# don't bother simulating erases, this gets expensive with big disks
+defines.ERASE_VALUE = -1
+
 [cases.bench_rbyd]
 # 0 = in-order
 # 1 = reversed-order

benches/bench_wt.toml

@@ -5,7 +5,7 @@
 # note for bench_*_many, file size defaults to CHUNK, and SIZE = sum of
 # all files
 #
-defines.SIZE = 32768
+defines.SIZE = '1024*1024' # 1 MiB
 defines.CHUNK = 64
 defines.SEED = 42
 
@@ -14,7 +14,7 @@ defines.FILE_SIZE = 'CHUNK'
 defines.FILE_COUNT = '(SIZE+(FILE_SIZE-1)) / lfs3_max(FILE_SIZE, 1)'
 
 # simulated time, in nanoseconds, to run the bench
-defines.SIM_TIME = 60000000000 # 1 minute
+defines.SIM_TIME = '60ULL*60ULL*1000ULL*1000ULL*1000ULL' # 1 hour
 # simulation size in bytes
 defines.SIM_SIZE = 0
 

runners/bench_defines.h

@@ -13,7 +13,7 @@
 // preconfigured defines that control how benches run
 #ifdef BENCH_DEFINE
     //           name                   value (overridable)
-    BENCH_DEFINE(DISK_SIZE,             1024*1024                           )
+    BENCH_DEFINE(DISK_SIZE,             128*1024*1024                       )
     BENCH_DEFINE(DISK_GEOMETRY,         0                                   )
     BENCH_DEFINE(READ_SIZE,             DISK_MAP(READ_SIZE)                 )
     BENCH_DEFINE(PROG_SIZE,             DISK_MAP(PROG_SIZE)                 )
@@ -35,7 +35,9 @@
     BENCH_DEFINE(FRAGMENT_SIZE,         LFS3_MIN(BLOCK_SIZE/8, 512)         )
     BENCH_DEFINE(CRYSTAL_THRESH,        BLOCK_SIZE/8                        )
     BENCH_DEFINE(LOOKGBMAP_THRESH,      BLOCK_COUNT/4                       )
-    BENCH_DEFINE(ERASE_VALUE,           0xff                                )
+    // don't bother simulating erases, this may be less realistic, but
+    // it's certainly faster!
+    BENCH_DEFINE(ERASE_VALUE,           -1                                  )
     BENCH_DEFINE(READ_WIDTH,            DISK_MAP(READ_WIDTH)                )
     BENCH_DEFINE(PROG_WIDTH,            DISK_MAP(PROG_WIDTH)                )
     BENCH_DEFINE(ERASE_WIDTH,           DISK_MAP(ERASE_WIDTH)               )