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Kirill Smelkov
ZODB
Commits
835784d7
Commit
835784d7
authored
Apr 11, 2011
by
Jim Fulton
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Simplified code to get a small reduction in CPU time for object loads.
parent
a9ebb196
Changes
1
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5 additions
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22 deletions
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-22
src/ZEO/zrpc/smac.py
src/ZEO/zrpc/smac.py
+5
-22
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src/ZEO/zrpc/smac.py
View file @
835784d7
...
@@ -279,26 +279,9 @@ class SizedMessageAsyncConnection(asyncore.dispatcher):
...
@@ -279,26 +279,9 @@ class SizedMessageAsyncConnection(asyncore.dispatcher):
else
:
else
:
size
+=
self
.
__message_output
(
message
,
output
)
size
+=
self
.
__message_output
(
message
,
output
)
# Accumulate output into a single string so that we avoid
# multiple send() calls, but avoid accumulating too much
v
=
""
.
join
(
output
)
# data. If we send a very small string and have more data
del
output
[:]
# to send, we will likely incur delays caused by the
# unfortunate interaction between the Nagle algorithm and
# delayed acks. If we send a very large string, only a
# portion of it will actually be delivered at a time.
l
=
0
for
i
in
range
(
len
(
output
)):
l
+=
len
(
output
[
i
])
if
l
>
SEND_SIZE
:
break
i
+=
1
# It is very unlikely that i will be 1.
v
=
""
.
join
(
output
[:
i
])
# Note: "output" usually contains the output not yet sent
# The "del" below breaks this invariant temporarily.
# We must ensure its satisfaction again when we leave the loop
del
output
[:
i
]
try
:
try
:
n
=
self
.
send
(
v
)
n
=
self
.
send
(
v
)
...
@@ -310,8 +293,8 @@ class SizedMessageAsyncConnection(asyncore.dispatcher):
...
@@ -310,8 +293,8 @@ class SizedMessageAsyncConnection(asyncore.dispatcher):
break
# we couldn't write anything
break
# we couldn't write anything
raise
raise
if
n
<
l
:
if
n
<
l
en
(
v
)
:
output
.
insert
(
0
,
v
[
n
:])
output
.
append
(
v
[
n
:])
break
# we can't write any more
break
# we can't write any more
def
handle_close
(
self
):
def
handle_close
(
self
):
...
...
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