- file status A/M/E counters
- chunking time
- hashing time
- rx_bytes / tx_bytes
Note: the sleep() in the test is needed due to timestamp granularity on linux being much more coarse than expected (uses the system timer, 100Hz or 250Hz).
support reading new, improved hashindex header format, fixes#6960
Bit of a pain to work with that code:
- C code
- needs to still be able to read the old hashindex file format,
- while also supporting the new file format.
- the hash computed while reading the file causes additional problems because
it expects all places in the file get read exactly once and in sequential order.
I solved this by separately opening the file in the python part of the code and
checking for the magic.
BORG_IDX means the legacy file format and legacy layout of the hashtable,
BORG2IDX means the new file format and the new layout of the hashtable.
Done:
- added a version int32 directly after the magic and set it to 2 (like borg 2).
the old header had no version info, but could be denoted as version 1 in case
we ever need it (currently it decides based on the magic).
- added num_empty as indicated by a TODO in count_empty, so it does not need a
full hashtable scan to determine the amount of empty buckets.
- to keep it simpler, I just filled the HashHeader struct with a
`char reserved[1024 - 32];`
1024 being the desired overall header size and 32 being the currently used size.
this alignment might be useful in case we mmap() the hashindex file one day.
warning: src/borg/item.pyx:199:10: cpdef variables will not be supported in Cython 3; currently they are no different from cdef variables
warning: src/borg/item.pyx:200:10: cpdef variables will not be supported in Cython 3; currently they are no different from cdef variables
warning: src/borg/item.pyx:202:10: cpdef variables will not be supported in Cython 3; currently they are no different from cdef variables
this turns all python level classes into extension type classes.
additionally it turns the indirect properties into direct descriptors.
test_propdict_attributes runs about 30% faster.
base memory usage as reported by sys.getsizeof(Item()):
before: 48 bytes, after this PR: 40 bytes
Author: @RonnyPfannschmidt in PR #5763
