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import socket
import sys
from redis.connection import (Connection, SYM_STAR, SYM_DOLLAR, SYM_EMPTY,
SYM_CRLF, b)
from redis._compat import imap
from base import Benchmark
class StringJoiningConnection(Connection):
def send_packed_command(self, command):
"Send an already packed command to the Redis server"
if not self._sock:
self.connect()
try:
self._sock.sendall(command)
except socket.error:
e = sys.exc_info()[1]
self.disconnect()
if len(e.args) == 1:
_errno, errmsg = 'UNKNOWN', e.args[0]
else:
_errno, errmsg = e.args
raise ConnectionError("Error %s while writing to socket. %s." %
(_errno, errmsg))
except:
self.disconnect()
raise
def pack_command(self, *args):
"Pack a series of arguments into a value Redis command"
args_output = SYM_EMPTY.join([
SYM_EMPTY.join((SYM_DOLLAR, b(str(len(k))), SYM_CRLF, k, SYM_CRLF))
for k in imap(self.encode, args)])
output = SYM_EMPTY.join(
(SYM_STAR, b(str(len(args))), SYM_CRLF, args_output))
return output
class ListJoiningConnection(Connection):
def send_packed_command(self, command):
if not self._sock:
self.connect()
try:
if isinstance(command, str):
command = [command]
for item in command:
self._sock.sendall(item)
except socket.error:
e = sys.exc_info()[1]
self.disconnect()
if len(e.args) == 1:
_errno, errmsg = 'UNKNOWN', e.args[0]
else:
_errno, errmsg = e.args
raise ConnectionError("Error %s while writing to socket. %s." %
(_errno, errmsg))
except:
self.disconnect()
raise
def pack_command(self, *args):
output = []
buff = SYM_EMPTY.join(
(SYM_STAR, b(str(len(args))), SYM_CRLF))
for k in imap(self.encode, args):
if len(buff) > 6000 or len(k) > 6000:
buff = SYM_EMPTY.join(
(buff, SYM_DOLLAR, b(str(len(k))), SYM_CRLF))
output.append(buff)
output.append(k)
buff = SYM_CRLF
else:
buff = SYM_EMPTY.join((buff, SYM_DOLLAR, b(str(len(k))),
SYM_CRLF, k, SYM_CRLF))
output.append(buff)
return output
class CommandPackerBenchmark(Benchmark):
ARGUMENTS = (
{
'name': 'connection_class',
'values': [StringJoiningConnection, ListJoiningConnection]
},
{
'name': 'value_size',
'values': [10, 100, 1000, 10000, 100000, 1000000, 10000000,
100000000]
},
)
def setup(self, connection_class, value_size):
self.get_client(connection_class=connection_class)
def run(self, connection_class, value_size):
r = self.get_client()
x = 'a' * value_size
r.set('benchmark', x)
if __name__ == '__main__':
CommandPackerBenchmark().run_benchmark()
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