25 #include "precompiled.hpp" |
25 #include "precompiled.hpp" |
26 #include "runtime/arguments.hpp" |
26 #include "runtime/arguments.hpp" |
27 #include "runtime/commandLineFlagConstraintsRuntime.hpp" |
27 #include "runtime/commandLineFlagConstraintsRuntime.hpp" |
28 #include "runtime/commandLineFlagRangeList.hpp" |
28 #include "runtime/commandLineFlagRangeList.hpp" |
29 #include "runtime/globals.hpp" |
29 #include "runtime/globals.hpp" |
|
30 #include "runtime/task.hpp" |
30 #include "utilities/defaultStream.hpp" |
31 #include "utilities/defaultStream.hpp" |
31 |
32 |
32 Flag::Error ObjectAlignmentInBytesConstraintFunc(intx value, bool verbose) { |
33 Flag::Error ObjectAlignmentInBytesConstraintFunc(intx value, bool verbose) { |
33 if (!is_power_of_2(value)) { |
34 if (!is_power_of_2(value)) { |
34 CommandLineError::print(verbose, |
35 CommandLineError::print(verbose, |
39 } |
40 } |
40 // In case page size is very small. |
41 // In case page size is very small. |
41 if (value >= (intx)os::vm_page_size()) { |
42 if (value >= (intx)os::vm_page_size()) { |
42 CommandLineError::print(verbose, |
43 CommandLineError::print(verbose, |
43 "ObjectAlignmentInBytes (" INTX_FORMAT ") must be " |
44 "ObjectAlignmentInBytes (" INTX_FORMAT ") must be " |
44 "less than page size " INTX_FORMAT "\n", |
45 "less than page size (" INTX_FORMAT ")\n", |
45 value, (intx)os::vm_page_size()); |
46 value, (intx)os::vm_page_size()); |
46 return Flag::VIOLATES_CONSTRAINT; |
47 return Flag::VIOLATES_CONSTRAINT; |
47 } |
48 } |
48 return Flag::SUCCESS; |
49 return Flag::SUCCESS; |
49 } |
50 } |
50 |
51 |
51 // Need to enforce the padding not to break the existing field alignments. |
52 // Need to enforce the padding not to break the existing field alignments. |
52 // It is sufficient to check against the largest type size. |
53 // It is sufficient to check against the largest type size. |
53 Flag::Error ContendedPaddingWidthConstraintFunc(intx value, bool verbose) { |
54 Flag::Error ContendedPaddingWidthConstraintFunc(intx value, bool verbose) { |
54 if ((value != 0) && ((value % BytesPerLong) != 0)) { |
55 if ((value % BytesPerLong) != 0) { |
55 CommandLineError::print(verbose, |
56 CommandLineError::print(verbose, |
56 "ContendedPaddingWidth (" INTX_FORMAT ") must be " |
57 "ContendedPaddingWidth (" INTX_FORMAT ") must be " |
57 "a multiple of %d\n", |
58 "a multiple of %d\n", |
58 value, BytesPerLong); |
59 value, BytesPerLong); |
59 return Flag::VIOLATES_CONSTRAINT; |
60 return Flag::VIOLATES_CONSTRAINT; |
60 } else { |
61 } else { |
61 return Flag::SUCCESS; |
62 return Flag::SUCCESS; |
62 } |
63 } |
63 } |
64 } |
|
65 |
|
66 Flag::Error BiasedLockingBulkRebiasThresholdFunc(intx value, bool verbose) { |
|
67 if (value > BiasedLockingBulkRevokeThreshold) { |
|
68 CommandLineError::print(verbose, |
|
69 "BiasedLockingBulkRebiasThreshold (" INTX_FORMAT ") must be " |
|
70 "less than or equal to BiasedLockingBulkRevokeThreshold (" INTX_FORMAT ")\n", |
|
71 value, BiasedLockingBulkRevokeThreshold); |
|
72 return Flag::VIOLATES_CONSTRAINT; |
|
73 } else { |
|
74 return Flag::SUCCESS; |
|
75 } |
|
76 } |
|
77 |
|
78 Flag::Error BiasedLockingStartupDelayFunc(intx value, bool verbose) { |
|
79 if ((value % PeriodicTask::interval_gran) != 0) { |
|
80 CommandLineError::print(verbose, |
|
81 "BiasedLockingStartupDelay (" INTX_FORMAT ") must be " |
|
82 "evenly divisible by PeriodicTask::interval_gran (" INTX_FORMAT ")\n", |
|
83 value, PeriodicTask::interval_gran); |
|
84 return Flag::VIOLATES_CONSTRAINT; |
|
85 } else { |
|
86 return Flag::SUCCESS; |
|
87 } |
|
88 } |
|
89 |
|
90 Flag::Error BiasedLockingBulkRevokeThresholdFunc(intx value, bool verbose) { |
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91 if (value < BiasedLockingBulkRebiasThreshold) { |
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92 CommandLineError::print(verbose, |
|
93 "BiasedLockingBulkRevokeThreshold (" INTX_FORMAT ") must be " |
|
94 "greater than or equal to BiasedLockingBulkRebiasThreshold (" INTX_FORMAT ")\n", |
|
95 value, BiasedLockingBulkRebiasThreshold); |
|
96 return Flag::VIOLATES_CONSTRAINT; |
|
97 } else if ((double)value/(double)BiasedLockingDecayTime > 0.1) { |
|
98 CommandLineError::print(verbose, |
|
99 "The ratio of BiasedLockingBulkRevokeThreshold (" INTX_FORMAT ")" |
|
100 " to BiasedLockingDecayTime (" INTX_FORMAT ") must be " |
|
101 "less than or equal to 0.1\n", |
|
102 value, BiasedLockingBulkRebiasThreshold); |
|
103 return Flag::VIOLATES_CONSTRAINT; |
|
104 } else { |
|
105 return Flag::SUCCESS; |
|
106 } |
|
107 } |
|
108 |
|
109 Flag::Error BiasedLockingDecayTimeFunc(intx value, bool verbose) { |
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110 if (BiasedLockingBulkRebiasThreshold/(double)value > 0.1) { |
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111 CommandLineError::print(verbose, |
|
112 "The ratio of BiasedLockingBulkRebiasThreshold (" INTX_FORMAT ")" |
|
113 " to BiasedLockingDecayTime (" INTX_FORMAT ") must be " |
|
114 "less than or equal to 0.1\n", |
|
115 BiasedLockingBulkRebiasThreshold, value); |
|
116 return Flag::VIOLATES_CONSTRAINT; |
|
117 } else { |
|
118 return Flag::SUCCESS; |
|
119 } |
|
120 } |
|
121 |
|
122 Flag::Error PerfDataSamplingIntervalFunc(intx value, bool verbose) { |
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123 if ((value % PeriodicTask::interval_gran != 0)) { |
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124 CommandLineError::print(verbose, |
|
125 "PerfDataSamplingInterval (" INTX_FORMAT ") must be " |
|
126 "evenly divisible by PeriodicTask::interval_gran (" INTX_FORMAT ")\n", |
|
127 value, PeriodicTask::interval_gran); |
|
128 return Flag::VIOLATES_CONSTRAINT; |
|
129 } else { |
|
130 return Flag::SUCCESS; |
|
131 } |
|
132 } |