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| author | Sverker Eriksson <[email protected]> | 2010-11-02 18:08:04 +0100 |
|---|---|---|
| committer | Sverker Eriksson <[email protected]> | 2010-11-22 15:54:48 +0100 |
| commit | 454335cd043561cc9fe874bc325c152a0727328b (patch) | |
| tree | c12359d358fd8664bb5eb3b22cac80c5a8880e77 /erts/emulator/beam/erl_init.c | |
| parent | 7ceec2cef3643f2c2f63ae169f74da660803435b (diff) | |
| download | otp-454335cd043561cc9fe874bc325c152a0727328b.tar.gz otp-454335cd043561cc9fe874bc325c152a0727328b.tar.bz2 otp-454335cd043561cc9fe874bc325c152a0727328b.zip | |
ETS 'compressed' option.
The compressed format is using a slighty modified variant of the extern format
(term_to_binary). To not worsen key lookup's too much, the top tuple itself
and the key element are not compressed. Table objects with only immediate
non-key elements will therefor not gain anything (but actually consume one
extra word for "alloc_size").
Diffstat (limited to 'erts/emulator/beam/erl_init.c')
| -rw-r--r-- | erts/emulator/beam/erl_init.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c index a2fd5921a2..a9f4f041ac 100644 --- a/erts/emulator/beam/erl_init.c +++ b/erts/emulator/beam/erl_init.c @@ -807,6 +807,7 @@ early_init(int *argc, char **argv) /* erl_sys_args(argc, argv); erts_ets_realloc_always_moves = 0; + erts_ets_always_compress = 0; erts_dist_buf_busy_limit = ERTS_DE_BUSY_LIMIT; return ncpu; @@ -1028,15 +1029,20 @@ erl_start(int argc, char **argv) break; case 'e': - /* set maximum number of ets tables */ - arg = get_arg(argv[i]+2, argv[i+1], &i); - if (( user_requested_db_max_tabs = atoi(arg) ) < 0) { - erts_fprintf(stderr, "bad maximum number of ets tables %s\n", arg); - erts_usage(); + if (sys_strcmp("c", argv[i]+2) == 0) { + erts_ets_always_compress = 1; + } + else { + /* set maximum number of ets tables */ + arg = get_arg(argv[i]+2, argv[i+1], &i); + if (( user_requested_db_max_tabs = atoi(arg) ) < 0) { + erts_fprintf(stderr, "bad maximum number of ets tables %s\n", arg); + erts_usage(); + } + VERBOSE(DEBUG_SYSTEM, + ("using maximum number of ets tables %d\n", + user_requested_db_max_tabs)); } - VERBOSE(DEBUG_SYSTEM, - ("using maximum number of ets tables %d\n", - user_requested_db_max_tabs)); break; case 'i': |