1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
memcached 1.5.12
-p, --port=<num> TCP port to listen on (default: 11211)
-U, --udp-port=<num> UDP port to listen on (default: 0, off)
-s, --unix-socket=<file> UNIX socket to listen on (disables network support)
-A, --enable-shutdown enable ascii "shutdown" command
-a, --unix-mask=<mask> access mask for UNIX socket, in octal (default: 0700)
-l, --listen=<addr> interface to listen on (default: INADDR_ANY)
-d, --daemon run as a daemon
-r, --enable-coredumps maximize core file limit
-u, --user=<user> assume identity of <username> (only when run as root)
-m, --memory-limit=<num> item memory in megabytes (default: 64 MB)
-M, --disable-evictions return error on memory exhausted instead of evicting
-c, --conn-limit=<num> max simultaneous connections (default: 1024)
-k, --lock-memory lock down all paged memory
-v, --verbose verbose (print errors/warnings while in event loop)
-vv very verbose (also print client commands/responses)
-vvv extremely verbose (internal state transitions)
-h, --help print this help and exit
-i, --license print memcached and libevent license
-V, --version print version and exit
-P, --pidfile=<file> save PID in <file>, only used with -d option
-f, --slab-growth-factor=<num> chunk size growth factor (default: 1.25)
-n, --slab-min-size=<bytes> min space used for key+value+flags (default: 48)
-L, --enable-largepages try to use large memory pages (if available)
-D <char> Use <char> as the delimiter between key prefixes and IDs.
This is used for per-prefix stats reporting. The default is
":" (colon). If this option is specified, stats collection
is turned on automatically; if not, then it may be turned on
by sending the "stats detail on" command to the server.
-t, --threads=<num> number of threads to use (default: 4)
-R, --max-reqs-per-event maximum number of requests per event, limits the
requests processed per connection to prevent
starvation (default: 20)
-C, --disable-cas disable use of CAS
-b, --listen-backlog=<num> set the backlog queue limit (default: 1024)
-B, --protocol=<name> protocol - one of ascii, binary, or auto (default)
-I, --max-item-size=<num> adjusts max item size
(default: 1mb, min: 1k, max: 128m)
-F, --disable-flush-all disable flush_all command
-X, --disable-dumping disable stats cachedump and lru_crawler metadump
-o, --extended comma separated list of extended options
most options have a 'no_' prefix to disable
- maxconns_fast: immediately close new connections after limit
- hashpower: an integer multiplier for how large the hash
table should be. normally grows at runtime.
set based on "STAT hash_power_level"
- tail_repair_time: time in seconds for how long to wait before
forcefully killing LRU tail item.
disabled by default; very dangerous option.
- hash_algorithm: the hash table algorithm
default is murmur3 hash. options: jenkins, murmur3
- lru_crawler: enable LRU Crawler background thread
- lru_crawler_sleep: microseconds to sleep between items
default is 100.
- lru_crawler_tocrawl: max items to crawl per slab per run
default is 0 (unlimited)
- lru_maintainer: enable new LRU system + background thread
- hot_lru_pct: pct of slab memory to reserve for hot lru.
(requires lru_maintainer)
- warm_lru_pct: pct of slab memory to reserve for warm lru.
(requires lru_maintainer)
- hot_max_factor: items idle > cold lru age * drop from hot lru.
- warm_max_factor: items idle > cold lru age * this drop from warm.
- temporary_ttl: TTL's below get separate LRU, can't be evicted.
(requires lru_maintainer)
- idle_timeout: timeout for idle connections
- slab_chunk_max: (EXPERIMENTAL) maximum slab size. use extreme care.
- watcher_logbuf_size: size in kilobytes of per-watcher write buffer.
- worker_logbuf_size: size in kilobytes of per-worker-thread buffer
read by background thread, then written to watchers.
- track_sizes: enable dynamic reports for 'stats sizes' command.
- no_inline_ascii_resp: save up to 24 bytes per item.
small perf hit in ASCII, no perf difference in
binary protocol. speeds up all sets.
- no_hashexpand: disables hash table expansion (dangerous)
- modern: enables options which will be default in future.
currently: nothing
- no_modern: uses defaults of previous major version (1.4.x)
|
支付宝打赏
微信打赏