This is relevant only for cluster-enabled configurations.
Also, inline the cluster config getter functions, as they are on critical path for 100% of requests.

Finally, skip a test that triggers a check-fail bug filed in #5004

Fixes #5005

Signed-off-by: Roman Gershman <[email protected]>

Fixes #5004

Signed-off-by: Roman Gershman <[email protected]>

Fixes #4998.
1. Reduces agressive yielding when reading multiple requests since it humpers pipeline efficiency.
   Now we yield consistently based on cpu time spend since the last resume point (via flag with sane defaults).
2. Increases socket read buffer size effectively allowing processing more requests in bulk.

`./dragonfly  --cluster_mode=emulated`
latencies (usec) for pipeline sizes 80-199:
p50: 1887, p75: 2367, p90: 2897, p99: 6266

`./dragonfly  --cluster_mode=emulated --experimental_cluster_shard_by_slot`
latencies (usec) for pipeline sizes 80-199:
p50: 813, p75: 976, p90: 1216, p99: 3528

Signed-off-by: Roman Gershman <[email protected]>

fixed: #4988

1. Eliminate replies reverse call - will allow to unite replies and cmd vectors into one.
2. Introduce SwitchTxCmd function to avoid code duplication.

Signed-off-by: Roman Gershman <[email protected]>

Before: StoredCmd always copied the backing buffer of the commands.
this of course sub-optimal if the bucking buffer exists during the life-time
of StoredCmd. This is exactly the case in `Service::DispatchManyCommands`.

This PR:
1. Adds support for both owned and non-owned arguments.
2. Improves the interfaces around StoredCmd and removes some code duplication.

Signed-off-by: Roman Gershman <[email protected]>

fixed: #4993

1. Fix a crash bug in RESETSTAT when number of shards is less than number of threads.
2. Tune regtests parameters for pipelining tests to pass.

Signed-off-by: Roman Gershman <[email protected]>

…5001)

* fix(glob): Correctly match longer strings with '*' or '**' pattern

If string is longer than 16 chars we are using reflex library for
matching. When used pattern is '*' or '**' we are going to remove
trailing and leading star and have empty pattern. We should, in this,
edge case set manually star pattern.

Fixes #4948

Signed-off-by: mkaruza <[email protected]>

* Core matching test

---------

Signed-off-by: mkaruza <[email protected]>

fixed: #4979

…void messing lines (#5019)

chore: polishing. put basic usage info to stdout using one call to avoid messing with lines

Signed-off-by: adiholden <[email protected]>

Generate command with long strings. We will first create number of
random samples that will be used to match keys for which we are generating huge 
strings. Total length of huge value string will be divided equally between elements in
generated command.  

Closes #4430

Signed-off-by: mkaruza <[email protected]>

…commands.