zmq.Config Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jeromq Show documentation
Show all versions of jeromq Show documentation
Pure Java implementation of libzmq
package zmq;
public enum Config
{
// Number of new messages in message pipe needed to trigger new memory
// allocation. Setting this parameter to 256 decreases the impact of
// memory allocation by approximately 99.6%
MESSAGE_PIPE_GRANULARITY (256),
// Commands in pipe per allocation event.
COMMAND_PIPE_GRANULARITY (16),
// Determines how often does socket poll for new commands when it
// still has unprocessed messages to handle. Thus, if it is set to 100,
// socket will process 100 inbound messages before doing the poll.
// If there are no unprocessed messages available, poll is done
// immediately. Decreasing the value trades overall latency for more
// real-time behaviour (less latency peaks).
INBOUND_POLL_RATE (100),
// Maximal batching size for engines with receiving functionality.
// So, if there are 10 messages that fit into the batch size, all of
// them may be read by a single 'recv' system call, thus avoiding
// unnecessary network stack traversals.
IN_BATCH_SIZE (8192),
// Maximal batching size for engines with sending functionality.
// So, if there are 10 messages that fit into the batch size, all of
// them may be written by a single 'send' system call, thus avoiding
// unnecessary network stack traversals.
OUT_BATCH_SIZE (8192),
// Maximal delta between high and low watermark.
MAX_WM_DELTA (1024),
// Maximum number of events the I/O thread can process in one go.
MAX_IO_EVENTS (256),
// Maximal delay to process command in API thread (in CPU ticks).
// 3,000,000 ticks equals to 1 - 2 milliseconds on current CPUs.
// Note that delay is only applied when there is continuous stream of
// messages to process. If not so, commands are processed immediately.
MAX_COMMAND_DELAY (3000000),
// Low-precision clock precision in CPU ticks. 1ms. Value of 1000000
// should be OK for CPU frequencies above 1GHz. If should work
// reasonably well for CPU frequencies above 500MHz. For lower CPU
// frequencies you may consider lowering this value to get best
// possible latencies.
CLOCK_PRECISION (1000000),
// Maximum transport data unit size for PGM (TPDU).
PGM_MAX_TPDU (1500),
// On some OSes the signaler has to be emulated using a TCP
// connection. In such cases following port is used.
SIGNALER_PORT (5905);
private final int value;
private Config(int value)
{
this.value = value;
}
public int getValue()
{
return value;
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy