Thu, 14 Mar 2013 09:37:38 +0100
6733980: par compact - TraceGen1Time always shows 0.0000 seconds
Summary: Use the correct collector to retrieve accumulated gen1 trace time
Reviewed-by: johnc, jmasa
duke@435 | 1 | /* |
stefank@2314 | 2 | * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #include "precompiled.hpp" |
stefank@2314 | 26 | #include "gc_implementation/parallelScavenge/psVirtualspace.hpp" |
stefank@2314 | 27 | #include "runtime/os.hpp" |
stefank@2314 | 28 | #include "runtime/virtualspace.hpp" |
stefank@2314 | 29 | #ifdef TARGET_OS_FAMILY_linux |
stefank@2314 | 30 | # include "os_linux.inline.hpp" |
stefank@2314 | 31 | #endif |
stefank@2314 | 32 | #ifdef TARGET_OS_FAMILY_solaris |
stefank@2314 | 33 | # include "os_solaris.inline.hpp" |
stefank@2314 | 34 | #endif |
stefank@2314 | 35 | #ifdef TARGET_OS_FAMILY_windows |
stefank@2314 | 36 | # include "os_windows.inline.hpp" |
stefank@2314 | 37 | #endif |
never@3156 | 38 | #ifdef TARGET_OS_FAMILY_bsd |
never@3156 | 39 | # include "os_bsd.inline.hpp" |
never@3156 | 40 | #endif |
duke@435 | 41 | |
duke@435 | 42 | // PSVirtualSpace |
duke@435 | 43 | |
duke@435 | 44 | PSVirtualSpace::PSVirtualSpace(ReservedSpace rs, size_t alignment) : |
duke@435 | 45 | _alignment(alignment) |
duke@435 | 46 | { |
duke@435 | 47 | set_reserved(rs); |
duke@435 | 48 | set_committed(reserved_low_addr(), reserved_low_addr()); |
duke@435 | 49 | DEBUG_ONLY(verify()); |
duke@435 | 50 | } |
duke@435 | 51 | |
duke@435 | 52 | PSVirtualSpace::PSVirtualSpace(ReservedSpace rs) : |
duke@435 | 53 | _alignment(os::vm_page_size()) |
duke@435 | 54 | { |
duke@435 | 55 | set_reserved(rs); |
duke@435 | 56 | set_committed(reserved_low_addr(), reserved_low_addr()); |
duke@435 | 57 | DEBUG_ONLY(verify()); |
duke@435 | 58 | } |
duke@435 | 59 | |
duke@435 | 60 | // Deprecated. |
duke@435 | 61 | PSVirtualSpace::PSVirtualSpace(): _alignment(os::vm_page_size()) { |
duke@435 | 62 | } |
duke@435 | 63 | |
duke@435 | 64 | // Deprecated. |
duke@435 | 65 | bool PSVirtualSpace::initialize(ReservedSpace rs, |
duke@435 | 66 | size_t commit_size) { |
duke@435 | 67 | set_reserved(rs); |
duke@435 | 68 | set_committed(reserved_low_addr(), reserved_low_addr()); |
duke@435 | 69 | |
duke@435 | 70 | // Commit to initial size. |
duke@435 | 71 | assert(commit_size <= rs.size(), "commit_size too big"); |
duke@435 | 72 | bool result = commit_size > 0 ? expand_by(commit_size) : true; |
duke@435 | 73 | DEBUG_ONLY(verify()); |
duke@435 | 74 | return result; |
duke@435 | 75 | } |
duke@435 | 76 | |
duke@435 | 77 | PSVirtualSpace::~PSVirtualSpace() { |
duke@435 | 78 | release(); |
duke@435 | 79 | } |
duke@435 | 80 | |
duke@435 | 81 | bool PSVirtualSpace::contains(void* p) const { |
duke@435 | 82 | char* const cp = (char*)p; |
duke@435 | 83 | return cp >= committed_low_addr() && cp < committed_high_addr(); |
duke@435 | 84 | } |
duke@435 | 85 | |
duke@435 | 86 | void PSVirtualSpace::release() { |
duke@435 | 87 | DEBUG_ONLY(PSVirtualSpaceVerifier this_verifier(this)); |
coleenp@672 | 88 | // This may not release memory it didn't reserve. |
coleenp@672 | 89 | // Use rs.release() to release the underlying memory instead. |
duke@435 | 90 | _reserved_low_addr = _reserved_high_addr = NULL; |
duke@435 | 91 | _committed_low_addr = _committed_high_addr = NULL; |
duke@435 | 92 | _special = false; |
duke@435 | 93 | } |
duke@435 | 94 | |
iveresov@970 | 95 | bool PSVirtualSpace::expand_by(size_t bytes) { |
duke@435 | 96 | assert(is_aligned(bytes), "arg not aligned"); |
duke@435 | 97 | DEBUG_ONLY(PSVirtualSpaceVerifier this_verifier(this)); |
duke@435 | 98 | |
duke@435 | 99 | if (uncommitted_size() < bytes) { |
duke@435 | 100 | return false; |
duke@435 | 101 | } |
duke@435 | 102 | |
duke@435 | 103 | char* const base_addr = committed_high_addr(); |
duke@435 | 104 | bool result = special() || os::commit_memory(base_addr, bytes, alignment()); |
duke@435 | 105 | if (result) { |
duke@435 | 106 | _committed_high_addr += bytes; |
duke@435 | 107 | } |
duke@435 | 108 | |
duke@435 | 109 | return result; |
duke@435 | 110 | } |
duke@435 | 111 | |
duke@435 | 112 | bool PSVirtualSpace::shrink_by(size_t bytes) { |
duke@435 | 113 | assert(is_aligned(bytes), "arg not aligned"); |
duke@435 | 114 | DEBUG_ONLY(PSVirtualSpaceVerifier this_verifier(this)); |
duke@435 | 115 | |
duke@435 | 116 | if (committed_size() < bytes) { |
duke@435 | 117 | return false; |
duke@435 | 118 | } |
duke@435 | 119 | |
duke@435 | 120 | char* const base_addr = committed_high_addr() - bytes; |
duke@435 | 121 | bool result = special() || os::uncommit_memory(base_addr, bytes); |
duke@435 | 122 | if (result) { |
duke@435 | 123 | _committed_high_addr -= bytes; |
duke@435 | 124 | } |
duke@435 | 125 | |
duke@435 | 126 | return result; |
duke@435 | 127 | } |
duke@435 | 128 | |
duke@435 | 129 | size_t |
duke@435 | 130 | PSVirtualSpace::expand_into(PSVirtualSpace* other_space, size_t bytes) { |
duke@435 | 131 | assert(is_aligned(bytes), "arg not aligned"); |
duke@435 | 132 | assert(grows_up(), "this space must grow up"); |
duke@435 | 133 | assert(other_space->grows_down(), "other space must grow down"); |
duke@435 | 134 | assert(reserved_high_addr() == other_space->reserved_low_addr(), |
duke@435 | 135 | "spaces not contiguous"); |
duke@435 | 136 | assert(special() == other_space->special(), "one space is special, the other is not"); |
duke@435 | 137 | DEBUG_ONLY(PSVirtualSpaceVerifier this_verifier(this)); |
duke@435 | 138 | DEBUG_ONLY(PSVirtualSpaceVerifier other_verifier(other_space)); |
duke@435 | 139 | |
duke@435 | 140 | size_t bytes_needed = bytes; |
duke@435 | 141 | |
duke@435 | 142 | // First use the uncommitted region in this space. |
duke@435 | 143 | size_t tmp_bytes = MIN2(uncommitted_size(), bytes_needed); |
duke@435 | 144 | if (tmp_bytes > 0) { |
duke@435 | 145 | if (expand_by(tmp_bytes)) { |
duke@435 | 146 | bytes_needed -= tmp_bytes; |
duke@435 | 147 | } else { |
duke@435 | 148 | return 0; |
duke@435 | 149 | } |
duke@435 | 150 | } |
duke@435 | 151 | |
duke@435 | 152 | // Next take from the uncommitted region in the other space, and commit it. |
duke@435 | 153 | tmp_bytes = MIN2(other_space->uncommitted_size(), bytes_needed); |
duke@435 | 154 | if (tmp_bytes > 0) { |
duke@435 | 155 | char* const commit_base = committed_high_addr(); |
duke@435 | 156 | if (other_space->special() || |
duke@435 | 157 | os::commit_memory(commit_base, tmp_bytes, alignment())) { |
duke@435 | 158 | // Reduce the reserved region in the other space. |
duke@435 | 159 | other_space->set_reserved(other_space->reserved_low_addr() + tmp_bytes, |
duke@435 | 160 | other_space->reserved_high_addr(), |
duke@435 | 161 | other_space->special()); |
duke@435 | 162 | |
duke@435 | 163 | // Grow both reserved and committed in this space. |
duke@435 | 164 | _reserved_high_addr += tmp_bytes; |
duke@435 | 165 | _committed_high_addr += tmp_bytes; |
duke@435 | 166 | bytes_needed -= tmp_bytes; |
duke@435 | 167 | } else { |
duke@435 | 168 | return bytes - bytes_needed; |
duke@435 | 169 | } |
duke@435 | 170 | } |
duke@435 | 171 | |
duke@435 | 172 | // Finally take from the already committed region in the other space. |
duke@435 | 173 | tmp_bytes = bytes_needed; |
duke@435 | 174 | if (tmp_bytes > 0) { |
duke@435 | 175 | // Reduce both committed and reserved in the other space. |
duke@435 | 176 | other_space->set_committed(other_space->committed_low_addr() + tmp_bytes, |
duke@435 | 177 | other_space->committed_high_addr()); |
duke@435 | 178 | other_space->set_reserved(other_space->reserved_low_addr() + tmp_bytes, |
duke@435 | 179 | other_space->reserved_high_addr(), |
duke@435 | 180 | other_space->special()); |
duke@435 | 181 | |
duke@435 | 182 | // Grow both reserved and committed in this space. |
duke@435 | 183 | _reserved_high_addr += tmp_bytes; |
duke@435 | 184 | _committed_high_addr += tmp_bytes; |
duke@435 | 185 | } |
duke@435 | 186 | |
duke@435 | 187 | return bytes; |
duke@435 | 188 | } |
duke@435 | 189 | |
duke@435 | 190 | #ifndef PRODUCT |
duke@435 | 191 | bool PSVirtualSpace::is_aligned(size_t value, size_t align) { |
duke@435 | 192 | const size_t tmp_value = value + align - 1; |
duke@435 | 193 | const size_t mask = ~(align - 1); |
duke@435 | 194 | return (tmp_value & mask) == value; |
duke@435 | 195 | } |
duke@435 | 196 | |
duke@435 | 197 | bool PSVirtualSpace::is_aligned(size_t value) const { |
duke@435 | 198 | return is_aligned(value, alignment()); |
duke@435 | 199 | } |
duke@435 | 200 | |
duke@435 | 201 | bool PSVirtualSpace::is_aligned(char* value) const { |
duke@435 | 202 | return is_aligned((size_t)value); |
duke@435 | 203 | } |
duke@435 | 204 | |
duke@435 | 205 | void PSVirtualSpace::verify() const { |
duke@435 | 206 | assert(is_aligned(alignment(), os::vm_page_size()), "bad alignment"); |
duke@435 | 207 | assert(is_aligned(reserved_low_addr()), "bad reserved_low_addr"); |
duke@435 | 208 | assert(is_aligned(reserved_high_addr()), "bad reserved_high_addr"); |
duke@435 | 209 | assert(is_aligned(committed_low_addr()), "bad committed_low_addr"); |
duke@435 | 210 | assert(is_aligned(committed_high_addr()), "bad committed_high_addr"); |
duke@435 | 211 | |
duke@435 | 212 | // Reserved region must be non-empty or both addrs must be 0. |
duke@435 | 213 | assert(reserved_low_addr() < reserved_high_addr() || |
duke@435 | 214 | reserved_low_addr() == NULL && reserved_high_addr() == NULL, |
duke@435 | 215 | "bad reserved addrs"); |
duke@435 | 216 | assert(committed_low_addr() <= committed_high_addr(), "bad committed addrs"); |
duke@435 | 217 | |
duke@435 | 218 | if (grows_up()) { |
duke@435 | 219 | assert(reserved_low_addr() == committed_low_addr(), "bad low addrs"); |
duke@435 | 220 | assert(reserved_high_addr() >= committed_high_addr(), "bad high addrs"); |
duke@435 | 221 | } else { |
duke@435 | 222 | assert(reserved_high_addr() == committed_high_addr(), "bad high addrs"); |
duke@435 | 223 | assert(reserved_low_addr() <= committed_low_addr(), "bad low addrs"); |
duke@435 | 224 | } |
duke@435 | 225 | } |
duke@435 | 226 | |
duke@435 | 227 | void PSVirtualSpace::print() const { |
duke@435 | 228 | gclog_or_tty->print_cr("virtual space [" PTR_FORMAT "]: alignment=" |
duke@435 | 229 | SIZE_FORMAT "K grows %s%s", |
duke@435 | 230 | this, alignment() / K, grows_up() ? "up" : "down", |
duke@435 | 231 | special() ? " (pinned in memory)" : ""); |
duke@435 | 232 | gclog_or_tty->print_cr(" reserved=" SIZE_FORMAT "K" |
duke@435 | 233 | " [" PTR_FORMAT "," PTR_FORMAT "]" |
duke@435 | 234 | " committed=" SIZE_FORMAT "K" |
duke@435 | 235 | " [" PTR_FORMAT "," PTR_FORMAT "]", |
duke@435 | 236 | reserved_size() / K, |
duke@435 | 237 | reserved_low_addr(), reserved_high_addr(), |
duke@435 | 238 | committed_size() / K, |
duke@435 | 239 | committed_low_addr(), committed_high_addr()); |
duke@435 | 240 | } |
duke@435 | 241 | #endif // #ifndef PRODUCT |
duke@435 | 242 | |
duke@435 | 243 | void PSVirtualSpace::print_space_boundaries_on(outputStream* st) const { |
duke@435 | 244 | st->print_cr(" [" PTR_FORMAT ", " PTR_FORMAT ", " PTR_FORMAT ")", |
duke@435 | 245 | low_boundary(), high(), high_boundary()); |
duke@435 | 246 | } |
duke@435 | 247 | |
duke@435 | 248 | PSVirtualSpaceHighToLow::PSVirtualSpaceHighToLow(ReservedSpace rs, |
duke@435 | 249 | size_t alignment) : |
duke@435 | 250 | PSVirtualSpace(alignment) |
duke@435 | 251 | { |
duke@435 | 252 | set_reserved(rs); |
duke@435 | 253 | set_committed(reserved_high_addr(), reserved_high_addr()); |
duke@435 | 254 | DEBUG_ONLY(verify()); |
duke@435 | 255 | } |
duke@435 | 256 | |
duke@435 | 257 | PSVirtualSpaceHighToLow::PSVirtualSpaceHighToLow(ReservedSpace rs) { |
duke@435 | 258 | set_reserved(rs); |
duke@435 | 259 | set_committed(reserved_high_addr(), reserved_high_addr()); |
duke@435 | 260 | DEBUG_ONLY(verify()); |
duke@435 | 261 | } |
duke@435 | 262 | |
iveresov@970 | 263 | bool PSVirtualSpaceHighToLow::expand_by(size_t bytes) { |
duke@435 | 264 | assert(is_aligned(bytes), "arg not aligned"); |
duke@435 | 265 | DEBUG_ONLY(PSVirtualSpaceVerifier this_verifier(this)); |
duke@435 | 266 | |
duke@435 | 267 | if (uncommitted_size() < bytes) { |
duke@435 | 268 | return false; |
duke@435 | 269 | } |
duke@435 | 270 | |
duke@435 | 271 | char* const base_addr = committed_low_addr() - bytes; |
duke@435 | 272 | bool result = special() || os::commit_memory(base_addr, bytes, alignment()); |
duke@435 | 273 | if (result) { |
duke@435 | 274 | _committed_low_addr -= bytes; |
duke@435 | 275 | } |
duke@435 | 276 | |
duke@435 | 277 | return result; |
duke@435 | 278 | } |
duke@435 | 279 | |
duke@435 | 280 | bool PSVirtualSpaceHighToLow::shrink_by(size_t bytes) { |
duke@435 | 281 | assert(is_aligned(bytes), "arg not aligned"); |
duke@435 | 282 | DEBUG_ONLY(PSVirtualSpaceVerifier this_verifier(this)); |
duke@435 | 283 | |
duke@435 | 284 | if (committed_size() < bytes) { |
duke@435 | 285 | return false; |
duke@435 | 286 | } |
duke@435 | 287 | |
duke@435 | 288 | char* const base_addr = committed_low_addr(); |
duke@435 | 289 | bool result = special() || os::uncommit_memory(base_addr, bytes); |
duke@435 | 290 | if (result) { |
duke@435 | 291 | _committed_low_addr += bytes; |
duke@435 | 292 | } |
duke@435 | 293 | |
duke@435 | 294 | return result; |
duke@435 | 295 | } |
duke@435 | 296 | |
duke@435 | 297 | size_t PSVirtualSpaceHighToLow::expand_into(PSVirtualSpace* other_space, |
duke@435 | 298 | size_t bytes) { |
duke@435 | 299 | assert(is_aligned(bytes), "arg not aligned"); |
duke@435 | 300 | assert(grows_down(), "this space must grow down"); |
duke@435 | 301 | assert(other_space->grows_up(), "other space must grow up"); |
duke@435 | 302 | assert(reserved_low_addr() == other_space->reserved_high_addr(), |
duke@435 | 303 | "spaces not contiguous"); |
duke@435 | 304 | assert(special() == other_space->special(), "one space is special in memory, the other is not"); |
duke@435 | 305 | DEBUG_ONLY(PSVirtualSpaceVerifier this_verifier(this)); |
duke@435 | 306 | DEBUG_ONLY(PSVirtualSpaceVerifier other_verifier(other_space)); |
duke@435 | 307 | |
duke@435 | 308 | size_t bytes_needed = bytes; |
duke@435 | 309 | |
duke@435 | 310 | // First use the uncommitted region in this space. |
duke@435 | 311 | size_t tmp_bytes = MIN2(uncommitted_size(), bytes_needed); |
duke@435 | 312 | if (tmp_bytes > 0) { |
duke@435 | 313 | if (expand_by(tmp_bytes)) { |
duke@435 | 314 | bytes_needed -= tmp_bytes; |
duke@435 | 315 | } else { |
duke@435 | 316 | return 0; |
duke@435 | 317 | } |
duke@435 | 318 | } |
duke@435 | 319 | |
duke@435 | 320 | // Next take from the uncommitted region in the other space, and commit it. |
duke@435 | 321 | tmp_bytes = MIN2(other_space->uncommitted_size(), bytes_needed); |
duke@435 | 322 | if (tmp_bytes > 0) { |
duke@435 | 323 | char* const commit_base = committed_low_addr() - tmp_bytes; |
duke@435 | 324 | if (other_space->special() || |
duke@435 | 325 | os::commit_memory(commit_base, tmp_bytes, alignment())) { |
duke@435 | 326 | // Reduce the reserved region in the other space. |
duke@435 | 327 | other_space->set_reserved(other_space->reserved_low_addr(), |
duke@435 | 328 | other_space->reserved_high_addr() - tmp_bytes, |
duke@435 | 329 | other_space->special()); |
duke@435 | 330 | |
duke@435 | 331 | // Grow both reserved and committed in this space. |
duke@435 | 332 | _reserved_low_addr -= tmp_bytes; |
duke@435 | 333 | _committed_low_addr -= tmp_bytes; |
duke@435 | 334 | bytes_needed -= tmp_bytes; |
duke@435 | 335 | } else { |
duke@435 | 336 | return bytes - bytes_needed; |
duke@435 | 337 | } |
duke@435 | 338 | } |
duke@435 | 339 | |
duke@435 | 340 | // Finally take from the already committed region in the other space. |
duke@435 | 341 | tmp_bytes = bytes_needed; |
duke@435 | 342 | if (tmp_bytes > 0) { |
duke@435 | 343 | // Reduce both committed and reserved in the other space. |
duke@435 | 344 | other_space->set_committed(other_space->committed_low_addr(), |
duke@435 | 345 | other_space->committed_high_addr() - tmp_bytes); |
duke@435 | 346 | other_space->set_reserved(other_space->reserved_low_addr(), |
duke@435 | 347 | other_space->reserved_high_addr() - tmp_bytes, |
duke@435 | 348 | other_space->special()); |
duke@435 | 349 | |
duke@435 | 350 | // Grow both reserved and committed in this space. |
duke@435 | 351 | _reserved_low_addr -= tmp_bytes; |
duke@435 | 352 | _committed_low_addr -= tmp_bytes; |
duke@435 | 353 | } |
duke@435 | 354 | |
duke@435 | 355 | return bytes; |
duke@435 | 356 | } |
duke@435 | 357 | |
duke@435 | 358 | void |
duke@435 | 359 | PSVirtualSpaceHighToLow::print_space_boundaries_on(outputStream* st) const { |
duke@435 | 360 | st->print_cr(" (" PTR_FORMAT ", " PTR_FORMAT ", " PTR_FORMAT "]", |
duke@435 | 361 | high_boundary(), low(), low_boundary()); |
duke@435 | 362 | } |