ceremonyclient/pebble/objstorage/objstorageprovider/testdata/readahead
Cassandra Heart 2e2a1e4789
v1.2.0 (#31)
2024-01-03 01:31:42 -06:00

222 lines
2.8 KiB
Plaintext

reset
----
read
2048, 16
----
readahead: 0
numReads: 1
size: 65536
prevSize: 0
limit: 0
read
2096, 16
----
readahead: 0
numReads: 2
size: 65536
prevSize: 0
limit: 0
read
2112, 16
----
readahead: 65536
numReads: 3
size: 131072
prevSize: 65536
limit: 67648
read
8000, 16
----
readahead: 0
numReads: 4
size: 131072
prevSize: 65536
limit: 67648
read
8016, 16
----
readahead: 0
numReads: 5
size: 131072
prevSize: 65536
limit: 67648
# The new limit is 2112 + 65536 = 67648.
# Since the next read will end at 67646 + 1 = 67647,
# it doesn't yet trigger a readahead.
read
67646, 1
----
readahead: 0
numReads: 6
size: 131072
prevSize: 65536
limit: 67648
read
67646, 2
----
readahead: 131072
numReads: 7
size: 262144
prevSize: 131072
limit: 198718
read
16192, 16
----
readahead: 0
numReads: 1
size: 65536
prevSize: 0
limit: 16208
read
16193, 16
----
readahead: 0
numReads: 2
size: 65536
prevSize: 0
limit: 16208
# The next read is too far ahead to benefit from readahead
# (i.e. 540497 > 16208 (limit) + (512 << 10) (maxReadaheadSize))
# numReads should get reset to 1.
read
540497, 16
----
readahead: 0
numReads: 1
size: 65536
prevSize: 0
limit: 540513
read
7980, 16
----
readahead: 0
numReads: 1
size: 65536
prevSize: 0
limit: 7996
read
0, 16
----
readahead: 0
numReads: 1
size: 65536
prevSize: 0
limit: 16
# Sizes should start from initial (64kb) again.
read
7780, 16
----
readahead: 0
numReads: 2
size: 65536
prevSize: 0
limit: 16
read
7680, 16
----
readahead: 65536
numReads: 3
size: 131072
prevSize: 65536
limit: 73216
read
7780, 16
---
readahead: 0
numReads: 4
size: 131072
prevSize: 65536
limit: 73216
read
7880, 16
----
expected 2 args: offset, size
read
7980, 16
----
readahead: 0
numReads: 4
size: 131072
prevSize: 65536
limit: 73216
read
73416, 16
----
readahead: 131072
numReads: 5
size: 262144
prevSize: 131072
limit: 204488
read
204488, 16
----
readahead: 262144
numReads: 6
size: 262144
prevSize: 262144
limit: 466632
# The readahead size should not increase beyond the max (256kb)
read
466632, 16
----
readahead: 262144
numReads: 7
size: 262144
prevSize: 262144
limit: 728776
# A cache read pushes the limit further ahead without issuing a readahead.
cache-read
728770, 16
----
readahead: 0
numReads: 7
size: 262144
prevSize: 262144
limit: 728786
read
728780, 16
----
readahead: 262144
numReads: 8
size: 262144
prevSize: 262144
limit: 990924
# An out-of-order cache read still resets readahead state.
cache-read
1200, 16
----
readahead: 0
numReads: 1
size: 65536
prevSize: 0
limit: 1216