gdb: Introduce 'scylla memtables'
gdb: Introduce 'scylla memtables'

Example output:

(gdb) scylla memtables
table "ks_truncate"."standard1":
  (memtable*) 0x60c0005a5500: total=131072, used=131072, free=0, flushed=0
table "keyspace1"."standard1":
  (memtable*) 0x60c0005a6000: total=5144444928, used=4512728524, free=631716404, flushed=0
  (memtable*) 0x60c0005a8a80: total=426901504, used=374294312, free=52607192, flushed=0
  (memtable*) 0x60c000eb6a80: total=0, used=0, free=0, flushed=0
table "system_traces"."sessions_time_idx":
  (memtable*) 0x60c0005a4d80: total=131072, used=131072, free=0, flushed=0


Message-Id: <e5fb07f523459801826b9af881ff83543618cf1a@scylladb.com>

scylladb/scylla,scylladb/scylla,avikivity/scylla,scylladb/scylla,scylladb/scylla,avikivity/scylla,avikivity/scylla