:: [ 19:51:55 ] :: [   PASS   ] :: Command 'sysctl -w vm.dirty_background_ratio=20' (Expected 0, got 0)
:: [ 19:51:55 ] :: [   PASS   ] :: Command 'sysctl -w vm.dirty_ratio=20' (Expected 0, got 0)
:: [ 19:51:55 ] :: [   PASS   ] :: dirty_background_bytes (Assert: expected 0, got 0)
:: [ 19:51:55 ] :: [   PASS   ] :: dirty_bytes (Assert: expected 0, got 0)
:: [ 19:51:55 ] :: [   PASS   ] :: Command 'sync && sysctl -w vm.drop_caches=3' (Expected 0, got 0)
:: [ 19:51:57 ] :: [   PASS   ] :: Command 'dd if=/dev/zero of=./testfile bs=1K count=746730' (Expected 0, got 0)
:: [ 19:52:07 ] :: [   FAIL   ] :: 10% dirty pages should not trigger flush since dirty_ratio=20 (Assert: "582904" should be >= "597384")
:: [ 19:52:07 ] :: [   PASS   ] :: Command 'rm -f ./testfile' (Expected 0, got 0)
:: [ 19:52:07 ] :: [   LOG    ] :: Start test_dirty_ratio2
:: [ 19:52:07 ] :: [   PASS   ] :: Command 'sysctl -w vm.dirty_background_ratio=20' (Expected 0, got 0)
:: [ 19:52:07 ] :: [   PASS   ] :: Command 'sysctl -w vm.dirty_ratio=20' (Expected 0, got 0)
:: [ 19:52:07 ] :: [   PASS   ] :: dirty_background_bytes (Assert: expected 0, got 0)
:: [ 19:52:07 ] :: [   PASS   ] :: dirty_bytes (Assert: expected 0, got 0)
:: [ 19:52:08 ] :: [   PASS   ] :: Command 'sync && sysctl -w vm.drop_caches=3' (Expected 0, got 0)
:: [ 19:52:26 ] :: [   PASS   ] :: Command 'dd if=/dev/zero of=./testfile bs=1K count=2240190' (Expected 0, got 0)
:: [ 19:52:37 ] :: [   PASS   ] :: 30% dirty pages should trigger flush since dirty_ratio=20 (Assert: "1493460" should be >= "667332")
:: [ 19:52:37 ] :: [   PASS   ] :: Command 'rm -f ./testfile' (Expected 0, got 0)
:: [ 19:52:37 ] :: [   LOG    ] :: Start test_dirty_expire_centisecs1
:: [ 19:52:37 ] :: [   PASS   ] :: Command 'sysctl -w vm.dirty_expire_centisecs=1000' (Expected 0, got 0)
:: [ 19:52:38 ] :: [   PASS   ] :: Command 'sysctl -w vm.dirty_writeback_centisecs=100' (Expected 0, got 0)
:: [ 19:52:38 ] :: [   PASS   ] :: Command 'sysctl -w vm.dirty_background_bytes=500000000' (Expected 0, got 0)
:: [ 19:52:38 ] :: [   PASS   ] :: Command 'sysctl -w vm.dirty_bytes=500000000' (Expected 0, got 0)
:: [ 19:52:38 ] :: [   PASS   ] :: Command 'sync && sysctl -w vm.drop_caches=3' (Expected 0, got 0)
:: [ 19:52:38 ] :: [   PASS   ] :: Command 'dd if=/dev/zero of=./testfile bs=1M count=200' (Expected 0, got 0)
:: [ 19:52:43 ] :: [   FAIL   ] :: 5s should not trigger flush since vm.dirty_expire_centisecs=1000 (Assert: "73732" should be >= "163840")
:: [ 19:52:53 ] :: [   PASS   ] :: 15s should trigger flush since vm.dirty_expire_centisecs=1000 (Assert: "204800" should be >= "24")
:: [ 19:52:53 ] :: [   PASS   ] :: Command 'rm -f ./testfile' (Expected 0, got 0)
:: [ 19:52:54 ] :: [   PASS   ] :: Command 'sysctl -w vm.dirty_background_ratio=10' (Expected 0, got 0)