Ensure test/format configures a reasonably sized cache

 ++ nice ./t -1 -c CONFIG

[1530663935:672438][10701:0x7fe256bf7700], t, eviction-server: Cache stuck for too long, giving up: Connection timed out

t: process 10701

0x7fe25c20f3c0:=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

0x7fe25c20f3c0:transaction state dump

0x7fe25c20f3c0:current ID: 116945

0x7fe25c20f3c0:last running ID: 116682

0x7fe25c20f3c0:oldest ID: 116674

0x7fe25c20f3c0:commit timestamp: 45b9f

0x7fe25c20f3c0:oldest timestamp: 45b9f

0x7fe25c20f3c0:pinned timestamp: 45891

0x7fe25c20f3c0:stable timestamp: 0

0x7fe25c20f3c0:has_commit_timestamp: yes

0x7fe25c20f3c0:has_oldest_timestamp: yes

0x7fe25c20f3c0:has_pinned_timestamp: yes

0x7fe25c20f3c0:has_stable_timestamp: no

0x7fe25c20f3c0:oldest_is_pinned: no

0x7fe25c20f3c0:stable_is_pinned: no

0x7fe25c20f3c0:checkpoint running: yes

0x7fe25c20f3c0:checkpoint generation: 3

0x7fe25c20f3c0:checkpoint pinned ID: 105986

0x7fe25c20f3c0:checkpoint txn ID: 106028

0x7fe25c20f3c0:oldest named snapshot ID: 0

0x7fe25c20f3c0:session count: 46

0x7fe25c20f3c0:Transaction state of active sessions:

0x7fe25c20f3c0:ID: 116682, pinned ID: 116674, metadata pinned ID: 106028, name: WT_CURSOR.prev

0x7fe25c211f80:mod count: 1, snap min: 106028, snap max: 116681, commit_timestamp: 4588f, first_commit_timestamp: 4588f, read_timestamp: 45891, flags: 0x0000142c, isolation: WT_ISO_SNAPSHOT

0x7fe25c20f3c0:ID: 116738, pinned ID: 116682, metadata pinned ID: 116682, name: WT_CURSOR.next

0x7fe25c215860:mod count: 3, snap min: 106028, snap max: 116663, commit_timestamp: 4591b, first_commit_timestamp: 4591b, read_timestamp: 4584c, flags: 0x00001004, isolation: WT_ISO_READ_UNCOMMITTED

0x7fe25c20f3c0:ID: 116699, pinned ID: 116682, metadata pinned ID: 116682, name: WT_CURSOR.next

0x7fe25c215cc0:mod count: 2, snap min: 106028, snap max: 116691, commit_timestamp: 458ad, first_commit_timestamp: 458ad, read_timestamp: 458a4, flags: 0x00001004, isolation: WT_ISO_READ_UNCOMMITTED

0x7fe25c20f3c0:=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

0x7fe25c20f3c0:cache dump

0x7fe25c20f3c0:cache full: no

0x7fe25c20f3c0:cache clean check: no (79.551%)

0x7fe25c20f3c0:cache dirty check: yes (20.001%)

############################################

#  RUN PARAMETERS

############################################

abort=0

alter=1

auto_throttle=1

backups=0

bitcnt=2

bloom=1

bloom_bit_count=6

bloom_hash_count=21

bloom_oldest=0

cache=30

cache_minimum=20

checkpoints=wiredtiger

checkpoint_log_size=121

checkpoint_wait=91

checksum=uncompressed

chunk_size=4

compaction=0

compression=lz4

data_extend=0

data_source=table

delete_pct=29

dictionary=1

direct_io=0

encryption=rotn-7

evict_max=4

file_type=row-store

firstfit=0

huffman_key=0

huffman_value=0

independent_thread_rng=0

in_memory=0

insert_pct=6

internal_key_truncation=1

internal_page_max=10

isolation=random

key_gap=12

key_max=69

key_min=21

leaf_page_max=11

leak_memory=0

logging=0

logging_archive=0

logging_compression=none

logging_file_max=381521

logging_prealloc=1

long_running_txn=0

lsm_worker_threads=3

merge_max=20

mmap=1

modify_pct=8

ops=0

prefix_compression=1

prefix_compression_min=2

prepare=0

quiet=1

read_pct=52

rebalance=1

repeat_data_pct=18

reverse=0

rows=1000000

runs=1

salvage=1

split_pct=94

statistics=0

statistics_server=0

threads=30

timer=4

timing_stress_checkpoint=0

timing_stress_lookaside_sweep=0

timing_stress_split_1=0

timing_stress_split_2=0

timing_stress_split_3=1

timing_stress_split_4=0

timing_stress_split_5=0

timing_stress_split_6=0

timing_stress_split_7=0

timing_stress_split_8=0

timing_stress_split_9=0

transaction_timestamps=1

transaction-frequency=9

truncate=1

value_max=4032

value_min=2

verify=1

wiredtiger_config=

write_pct=5

############################################