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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
|
require 'test/unit'
class TestGc < Test::Unit::TestCase
class S
def initialize(a)
@a = a
end
end
def test_gc
prev_stress = GC.stress
GC.stress = false
assert_nothing_raised do
1.upto(10000) {
tmp = [0,1,2,3,4,5,6,7,8,9]
}
tmp = nil
end
l=nil
100000.times {
l = S.new(l)
}
GC.start
assert true # reach here or dumps core
l = []
100000.times {
l.push([l])
}
GC.start
assert true # reach here or dumps core
GC.stress = prev_stress
end
def use_rgengc?
GC::OPTS.include? 'USE_RGENGC'.freeze
end
def test_enable_disable
GC.enable
assert_equal(false, GC.enable)
assert_equal(false, GC.disable)
assert_equal(true, GC.disable)
assert_equal(true, GC.disable)
assert_nil(GC.start)
assert_equal(true, GC.enable)
assert_equal(false, GC.enable)
ensure
GC.enable
end
def test_start_full_mark
return unless use_rgengc?
GC.start(full_mark: false)
assert_nil GC.latest_gc_info(:major_by)
GC.start(full_mark: true)
assert_not_nil GC.latest_gc_info(:major_by)
end
def test_start_immediate_sweep
GC.start(immediate_sweep: false)
assert_equal false, GC.latest_gc_info(:immediate_sweep)
GC.start(immediate_sweep: true)
assert_equal true, GC.latest_gc_info(:immediate_sweep)
end
def test_count
c = GC.count
GC.start
assert_operator(c, :<, GC.count)
end
def test_stat
res = GC.stat
assert_equal(false, res.empty?)
assert_kind_of(Integer, res[:count])
arg = Hash.new
res = GC.stat(arg)
assert_equal(arg, res)
assert_equal(false, res.empty?)
assert_kind_of(Integer, res[:count])
stat, count = {}, {}
GC.start
GC.stat(stat)
ObjectSpace.count_objects(count)
assert_equal(count[:TOTAL]-count[:FREE], stat[:heap_live_slots])
assert_equal(count[:FREE], stat[:heap_free_slots])
# measure again without GC.start
1000.times{ "a" + "b" }
GC.stat(stat)
ObjectSpace.count_objects(count)
assert_equal(count[:FREE], stat[:heap_free_slots])
end
def test_stat_argument
assert_raise_with_message(ArgumentError, /\u{30eb 30d3 30fc}/) {GC.stat(:"\u{30eb 30d3 30fc}")}
end
def test_stat_single
stat = GC.stat
assert_equal stat[:count], GC.stat(:count)
assert_raise(ArgumentError){ GC.stat(:invalid) }
end
def test_stat_constraints
stat = GC.stat
assert_equal stat[:total_allocated_pages], stat[:heap_allocated_pages] + stat[:total_freed_pages]
assert_operator stat[:heap_sorted_length], :>=, stat[:heap_eden_pages] + stat[:heap_allocatable_pages], "stat is: " + stat.inspect
assert_equal stat[:heap_available_slots], stat[:heap_live_slots] + stat[:heap_free_slots] + stat[:heap_final_slots]
assert_equal stat[:heap_live_slots], stat[:total_allocated_objects] - stat[:total_freed_objects] - stat[:heap_final_slots]
assert_equal stat[:heap_allocated_pages], stat[:heap_eden_pages] + stat[:heap_tomb_pages]
if use_rgengc?
assert_equal stat[:count], stat[:major_gc_count] + stat[:minor_gc_count]
end
end
def test_latest_gc_info
assert_separately %w[--disable-gem], __FILE__, __LINE__, <<-'eom'
GC.start
count = GC.stat(:heap_free_slots) + GC.stat(:heap_allocatable_pages) * GC::INTERNAL_CONSTANTS[:HEAP_OBJ_LIMIT]
count.times{ "a" + "b" }
assert_equal :newobj, GC.latest_gc_info[:gc_by]
eom
GC.start
assert_equal :force, GC.latest_gc_info[:major_by] if use_rgengc?
assert_equal :method, GC.latest_gc_info[:gc_by]
assert_equal true, GC.latest_gc_info[:immediate_sweep]
GC.stress = true
assert_equal :force, GC.latest_gc_info[:major_by]
ensure
GC.stress = false
end
def test_latest_gc_info_argument
info = {}
GC.latest_gc_info(info)
assert_not_empty info
assert_equal info[:gc_by], GC.latest_gc_info(:gc_by)
assert_raise(ArgumentError){ GC.latest_gc_info(:invalid) }
assert_raise_with_message(ArgumentError, /\u{30eb 30d3 30fc}/) {GC.latest_gc_info(:"\u{30eb 30d3 30fc}")}
end
def test_singleton_method
assert_in_out_err(%w[--disable-gems], <<-EOS, [], [], "[ruby-dev:42832]")
GC.stress = true
10.times do
obj = Object.new
def obj.foo() end
def obj.bar() raise "obj.foo is called, but this is obj.bar" end
obj.foo
end
EOS
end
def test_singleton_method_added
assert_in_out_err(%w[--disable-gems], <<-EOS, [], [], "[ruby-dev:44436]")
class BasicObject
undef singleton_method_added
def singleton_method_added(mid)
raise
end
end
b = proc {}
class << b; end
b.clone rescue nil
GC.start
EOS
end
def test_gc_parameter
env = {
"RUBY_GC_MALLOC_LIMIT" => "60000000",
"RUBY_GC_HEAP_INIT_SLOTS" => "100000"
}
assert_normal_exit("exit", "[ruby-core:39777]", :child_env => env)
env = {
"RUBYOPT" => "",
"RUBY_GC_HEAP_INIT_SLOTS" => "100000"
}
assert_in_out_err([env, "-e", "exit"], "", [], [], "[ruby-core:39795]")
assert_in_out_err([env, "-W0", "-e", "exit"], "", [], [], "[ruby-core:39795]")
assert_in_out_err([env, "-W1", "-e", "exit"], "", [], [], "[ruby-core:39795]")
assert_in_out_err([env, "-w", "-e", "exit"], "", [], /RUBY_GC_HEAP_INIT_SLOTS=100000/, "[ruby-core:39795]")
env = {
"RUBY_GC_HEAP_GROWTH_FACTOR" => "2.0",
"RUBY_GC_HEAP_GROWTH_MAX_SLOTS" => "10000"
}
assert_normal_exit("exit", "", :child_env => env)
assert_in_out_err([env, "-w", "-e", "exit"], "", [], /RUBY_GC_HEAP_GROWTH_FACTOR=2.0/, "")
assert_in_out_err([env, "-w", "-e", "exit"], "", [], /RUBY_GC_HEAP_GROWTH_MAX_SLOTS=10000/, "[ruby-core:57928]")
env = {
"RUBY_GC_HEAP_INIT_SLOTS" => "100000",
"RUBY_GC_HEAP_FREE_SLOTS" => "10000",
"RUBY_GC_HEAP_OLDOBJECT_LIMIT_FACTOR" => "0.9",
}
assert_normal_exit("exit", "", :child_env => env)
assert_in_out_err([env, "-w", "-e", "exit"], "", [], /RUBY_GC_HEAP_OLDOBJECT_LIMIT_FACTOR=0\.9/, "")
# always full GC when RUBY_GC_HEAP_OLDOBJECT_LIMIT_FACTOR < 1.0
assert_in_out_err([env, "-e", "1000_000.times{Object.new}; p(GC.stat[:minor_gc_count] < GC.stat[:major_gc_count])"], "", ['true'], //, "") if use_rgengc?
# check obsolete
assert_in_out_err([{'RUBY_FREE_MIN' => '100'}, '-w', '-eexit'], '', [],
/RUBY_FREE_MIN is obsolete. Use RUBY_GC_HEAP_FREE_SLOTS instead/)
assert_in_out_err([{'RUBY_HEAP_MIN_SLOTS' => '100'}, '-w', '-eexit'], '', [],
/RUBY_HEAP_MIN_SLOTS is obsolete. Use RUBY_GC_HEAP_INIT_SLOTS instead/)
env = {
"RUBY_GC_MALLOC_LIMIT" => "60000000",
"RUBY_GC_MALLOC_LIMIT_MAX" => "160000000",
"RUBY_GC_MALLOC_LIMIT_GROWTH_FACTOR" => "2.0"
}
assert_normal_exit("exit", "", :child_env => env)
assert_in_out_err([env, "-w", "-e", "exit"], "", [], /RUBY_GC_MALLOC_LIMIT=6000000/, "")
assert_in_out_err([env, "-w", "-e", "exit"], "", [], /RUBY_GC_MALLOC_LIMIT_MAX=16000000/, "")
assert_in_out_err([env, "-w", "-e", "exit"], "", [], /RUBY_GC_MALLOC_LIMIT_GROWTH_FACTOR=2.0/, "")
if use_rgengc?
env = {
"RUBY_GC_OLDMALLOC_LIMIT" => "60000000",
"RUBY_GC_OLDMALLOC_LIMIT_MAX" => "160000000",
"RUBY_GC_OLDMALLOC_LIMIT_GROWTH_FACTOR" => "2.0"
}
assert_normal_exit("exit", "", :child_env => env)
assert_in_out_err([env, "-w", "-e", "exit"], "", [], /RUBY_GC_OLDMALLOC_LIMIT=6000000/, "")
assert_in_out_err([env, "-w", "-e", "exit"], "", [], /RUBY_GC_OLDMALLOC_LIMIT_MAX=16000000/, "")
assert_in_out_err([env, "-w", "-e", "exit"], "", [], /RUBY_GC_OLDMALLOC_LIMIT_GROWTH_FACTOR=2.0/, "")
end
end
def test_profiler_enabled
GC::Profiler.enable
assert_equal(true, GC::Profiler.enabled?)
GC::Profiler.disable
assert_equal(false, GC::Profiler.enabled?)
ensure
GC::Profiler.disable
end
def test_profiler_clear
assert_separately %w[--disable-gem], __FILE__, __LINE__, <<-'eom', timeout: 30
GC::Profiler.enable
GC.start
assert_equal(1, GC::Profiler.raw_data.size)
GC::Profiler.clear
assert_equal(0, GC::Profiler.raw_data.size)
200.times{ GC.start }
assert_equal(200, GC::Profiler.raw_data.size)
GC::Profiler.clear
assert_equal(0, GC::Profiler.raw_data.size)
eom
end
def test_profiler_total_time
GC::Profiler.enable
GC::Profiler.clear
GC.start
assert_operator(GC::Profiler.total_time, :>=, 0)
ensure
GC::Profiler.disable
end
def test_finalizing_main_thread
assert_in_out_err(%w[--disable-gems], <<-EOS, ["\"finalize\""], [], "[ruby-dev:46647]")
ObjectSpace.define_finalizer(Thread.main) { p 'finalize' }
EOS
end
def test_expand_heap
assert_separately %w[--disable-gem], __FILE__, __LINE__, <<-'eom'
GC.start
base_length = GC.stat[:heap_eden_pages]
(base_length * 500).times{ 'a' }
GC.start
assert_in_delta base_length, (v = GC.stat[:heap_eden_pages]), 1,
"invalid heap expanding (base_length: #{base_length}, GC.stat[:heap_eden_pages]: #{v})"
a = []
(base_length * 500).times{ a << 'a'; nil }
GC.start
assert_operator base_length, :<, GC.stat[:heap_eden_pages] + 1
eom
end
def test_gc_internals
assert_not_nil GC::INTERNAL_CONSTANTS[:HEAP_OBJ_LIMIT]
assert_not_nil GC::INTERNAL_CONSTANTS[:RVALUE_SIZE]
end
def test_sweep_in_finalizer
bug9205 = '[ruby-core:58833] [Bug #9205]'
2.times do
assert_ruby_status([], <<-'end;', bug9205, timeout: 60)
raise_proc = proc do |id|
GC.start
end
1000.times do
ObjectSpace.define_finalizer(Object.new, raise_proc)
end
end;
end
end
def test_exception_in_finalizer
bug9168 = '[ruby-core:58652] [Bug #9168]'
assert_normal_exit(<<-'end;', bug9168, encoding: Encoding::ASCII_8BIT)
raise_proc = proc {raise}
10000.times do
ObjectSpace.define_finalizer(Object.new, raise_proc)
Thread.handle_interrupt(RuntimeError => :immediate) {break}
Thread.handle_interrupt(RuntimeError => :on_blocking) {break}
Thread.handle_interrupt(RuntimeError => :never) {break}
end
end;
end
def test_interrupt_in_finalizer
bug10595 = '[ruby-core:66825] [Bug #10595]'
src = <<-'end;'
pid = $$
Thread.start do
10.times {
sleep 0.1
Process.kill("INT", pid) rescue break
}
end
f = proc {1000.times {}}
loop do
ObjectSpace.define_finalizer(Object.new, f)
end
end;
out, err, status = assert_in_out_err(["-e", src], "", [], [], bug10595, signal: :ABRT) do |*result|
break result
end
unless /mswin|mingw/ =~ RUBY_PLATFORM
assert_equal("INT", Signal.signame(status.termsig), bug10595)
end
assert_match(/Interrupt/, err.first, proc {err.join("\n")})
assert_empty(out)
end
def test_verify_internal_consistency
assert_nil(GC.verify_internal_consistency)
end
def test_gc_stress_on_realloc
assert_normal_exit(<<-'end;', '[Bug #9859]')
class C
def initialize
@a = nil
@b = nil
@c = nil
@d = nil
@e = nil
@f = nil
end
end
GC.stress = true
C.new
end;
end
end
|