hgext/remotefilelog/basepack.py

51702:b0a4de6c14f8

# size of the bisect in actual index.
# 2^16 / 8 was chosen because it trades off (1 step fanout scan + 5 step
# bisect) with (8 step fanout scan + 1 step bisect)
# 5 step bisect = log(2^16 / 8 / 255)  # fanout
# 10 step fanout scan = 2^16 / (2^16 / 8)  # fanout space divided by entries
SMALLFANOUTCUTOFF = 2 ** 16 // 8

# The amount of time to wait between checking for new packs. This prevents an
# exception when data is moved to a new pack after the process has already
# loaded the pack list.
REFRESHRATE = 0.1

class basepack(versionmixin):
    # The maximum amount we should read via mmap before remmaping so the old
    # pages can be released (100MB)
    MAXPAGEDIN = 100 * 1024 ** 2

    SUPPORTED_VERSIONS = [2]

    def __init__(self, path):
        self.path = path

51703:ca7bde5dbafb

# size of the bisect in actual index.
# 2^16 / 8 was chosen because it trades off (1 step fanout scan + 5 step
# bisect) with (8 step fanout scan + 1 step bisect)
# 5 step bisect = log(2^16 / 8 / 255)  # fanout
# 10 step fanout scan = 2^16 / (2^16 / 8)  # fanout space divided by entries
SMALLFANOUTCUTOFF = 2**16 // 8

# The amount of time to wait between checking for new packs. This prevents an
# exception when data is moved to a new pack after the process has already
# loaded the pack list.
REFRESHRATE = 0.1

class basepack(versionmixin):
    # The maximum amount we should read via mmap before remmaping so the old
    # pages can be released (100MB)
    MAXPAGEDIN = 100 * 1024**2

    SUPPORTED_VERSIONS = [2]

    def __init__(self, path):
        self.path = path