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-rw-r--r--erts/doc/src/erl.xml19
-rw-r--r--erts/doc/src/erlang.xml9
-rw-r--r--erts/emulator/beam/erl_bif_info.c2
-rw-r--r--erts/emulator/beam/erl_init.c19
-rw-r--r--erts/emulator/beam/erl_process.c1
-rw-r--r--erts/emulator/beam/erl_process.h1
6 files changed, 4 insertions, 47 deletions
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml
index d24c35d217..dc58cdeb13 100644
--- a/erts/doc/src/erl.xml
+++ b/erts/doc/src/erl.xml
@@ -1296,25 +1296,6 @@
<seealso marker="erlang#system_info_cpu_topology">
<c>erlang:system_info(cpu_topology)</c></seealso>.</p>
</item>
- <tag><marker id="+secio"/><c>+secio true|false</c></tag>
- <item>
- <p>Enables or disables eager check I/O scheduling. Defaults
- to <c>true</c>. The default was changed from <c>false</c>
- as from ERTS 7.0. The behavior before this
- flag was introduced corresponds to <c>+secio false</c>.</p>
- <p>The flag effects when schedulers will check for I/O
- operations possible to execute, and when such I/O operations
- will execute. As the parameter name implies,
- schedulers are more eager to check for I/O when
- <c>true</c> is passed. This, however, also implies that
- execution of outstanding I/O operation is not
- prioritized to the same extent as when <c>false</c> is
- passed.</p>
- <p><seealso marker="erlang#system_info_eager_check_io">
- <c>erlang:system_info(eager_check_io)</c></seealso>
- returns the value of this parameter used when starting
- the virtual machine.</p>
- </item>
<tag><marker id="+sfwi"/><c>+sfwi Interval</c></tag>
<item>
<p>Sets scheduler-forced wakeup interval. All run queues are
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index e6b983b6c2..48aac15827 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -8023,15 +8023,6 @@ ok
The return value will always be <c>false</c>, as the
<c>elib_malloc</c> allocator has been removed.</p>
</item>
- <tag><marker id="system_info_eager_check_io"/>
- <c>eager_check_io</c></tag>
- <item>
- <p>Returns the value of command-line flag
- <seealso marker="erl#+secio"><c>+secio</c></seealso> in
- <c>erl(1)</c>, which is either <c>true</c> or <c>false</c>.
- For information about the different values, see the
- documentation of the command-line flag.</p>
- </item>
<tag><c>ets_limit</c></tag>
<item>
<p>Returns the maximum number of ETS tables allowed. This
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index d0c2accec6..17c936f041 100644
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -2843,7 +2843,7 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
BIF_RET(am_disabled);
}
else if (ERTS_IS_ATOM_STR("eager_check_io",BIF_ARG_1)) {
- BIF_RET(erts_eager_check_io ? am_true : am_false);
+ BIF_RET(am_true);
}
else if (ERTS_IS_ATOM_STR("literal_test",BIF_ARG_1)) {
#ifdef ERTS_HAVE_IS_IN_LITERAL_RANGE
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c
index b4d84f6b16..6cef9bd0e3 100644
--- a/erts/emulator/beam/erl_init.c
+++ b/erts/emulator/beam/erl_init.c
@@ -1748,22 +1748,9 @@ erl_start(int argc, char **argv)
erts_usage();
}
}
- else if (has_prefix("ecio", sub_param)) {
- arg = get_arg(sub_param+4, argv[i+1], &i);
-#ifndef __OSE__
- if (sys_strcmp("true", arg) == 0)
- erts_eager_check_io = 1;
- else
-#endif
- if (sys_strcmp("false", arg) == 0)
- erts_eager_check_io = 0;
- else {
- erts_fprintf(stderr,
- "bad schedule eager check I/O value '%s'\n",
- arg);
- erts_usage();
- }
- }
+ else if (has_prefix("ecio", sub_param)) {
+ /* ignore argument, eager check io no longer used */
+ }
else if (has_prefix("pp", sub_param)) {
arg = get_arg(sub_param+2, argv[i+1], &i);
if (sys_strcmp(arg, "true") == 0)
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index ffb67aefaf..938dd1b9ac 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -174,7 +174,6 @@ extern BeamInstr beam_exit[];
extern BeamInstr beam_continue_exit[];
int ERTS_WRITE_UNLIKELY(erts_default_spo_flags) = SPO_ON_HEAP_MSGQ;
-int ERTS_WRITE_UNLIKELY(erts_eager_check_io) = 1;
int ERTS_WRITE_UNLIKELY(erts_sched_compact_load);
int ERTS_WRITE_UNLIKELY(erts_sched_balance_util) = 0;
Uint ERTS_WRITE_UNLIKELY(erts_no_schedulers);
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index b4c06adc95..66d7848f89 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -105,7 +105,6 @@ struct saved_calls {
};
extern Export exp_send, exp_receive, exp_timeout;
-extern int erts_eager_check_io;
extern int erts_sched_compact_load;
extern int erts_sched_balance_util;
extern Uint erts_no_schedulers;