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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "chrome/browser/renderer_host/web_cache_manager.h" | 5 #include "chrome/browser/renderer_host/web_cache_manager.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 | 8 |
9 #include "base/bind.h" | 9 #include "base/bind.h" |
10 #include "base/compiler_specific.h" | 10 #include "base/compiler_specific.h" |
11 #include "base/memory/singleton.h" | 11 #include "base/memory/singleton.h" |
12 #include "base/message_loop/message_loop.h" | 12 #include "base/message_loop/message_loop.h" |
13 #include "base/metrics/histogram.h" | 13 #include "base/metrics/histogram.h" |
14 #include "base/prefs/pref_registry_simple.h" | 14 #include "base/prefs/pref_registry_simple.h" |
15 #include "base/prefs/pref_service.h" | 15 #include "base/prefs/pref_service.h" |
16 #include "base/sys_info.h" | 16 #include "base/sys_info.h" |
17 #include "base/sys_utils.h" | |
17 #include "base/time/time.h" | 18 #include "base/time/time.h" |
18 #include "chrome/browser/browser_process.h" | 19 #include "chrome/browser/browser_process.h" |
19 #include "chrome/browser/chrome_notification_types.h" | 20 #include "chrome/browser/chrome_notification_types.h" |
20 #include "chrome/common/chrome_constants.h" | 21 #include "chrome/common/chrome_constants.h" |
21 #include "chrome/common/pref_names.h" | 22 #include "chrome/common/pref_names.h" |
22 #include "chrome/common/render_messages.h" | 23 #include "chrome/common/render_messages.h" |
23 #include "content/public/browser/notification_service.h" | 24 #include "content/public/browser/notification_service.h" |
24 #include "content/public/browser/render_process_host.h" | 25 #include "content/public/browser/render_process_host.h" |
25 | 26 |
26 #if defined(OS_ANDROID) | |
27 #include "base/android/sys_utils.h" | |
28 #endif | |
29 | |
30 using base::Time; | 27 using base::Time; |
31 using base::TimeDelta; | 28 using base::TimeDelta; |
32 using blink::WebCache; | 29 using blink::WebCache; |
33 | 30 |
34 static const int kReviseAllocationDelayMS = 200; | 31 static const int kReviseAllocationDelayMS = 200; |
35 | 32 |
36 // The default size limit of the in-memory cache is 8 MB | 33 // The default size limit of the in-memory cache is 8 MB |
37 static const int kDefaultMemoryCacheSize = 8 * 1024 * 1024; | 34 static const int kDefaultMemoryCacheSize = 8 * 1024 * 1024; |
38 | 35 |
39 namespace { | 36 namespace { |
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319 // This is the capacity this renderer has been allocated. | 316 // This is the capacity this renderer has been allocated. |
320 size_t capacity = allocation->second; | 317 size_t capacity = allocation->second; |
321 | 318 |
322 // We don't reserve any space for dead objects in the cache. Instead, we | 319 // We don't reserve any space for dead objects in the cache. Instead, we |
323 // prefer to keep live objects around. There is probably some performance | 320 // prefer to keep live objects around. There is probably some performance |
324 // tuning to be done here. | 321 // tuning to be done here. |
325 size_t min_dead_capacity = 0; | 322 size_t min_dead_capacity = 0; |
326 | 323 |
327 // We allow the dead objects to consume up to half of the cache capacity. | 324 // We allow the dead objects to consume up to half of the cache capacity. |
328 size_t max_dead_capacity = capacity / 2; | 325 size_t max_dead_capacity = capacity / 2; |
329 #if defined(OS_ANDROID) | 326 if (base::SysUtils::IsLowEndDevice()) |
brettw
2014/06/09 22:49:57
Can you put {} in this block since it's more than
c.shu
2014/06/10 17:36:26
Done.
| |
330 if (base::android::SysUtils::IsLowEndDevice()) | |
331 max_dead_capacity = std::min(static_cast<size_t>(512 * 1024), | 327 max_dead_capacity = std::min(static_cast<size_t>(512 * 1024), |
332 max_dead_capacity); | 328 max_dead_capacity); |
333 #endif | |
334 | 329 |
335 host->Send(new ChromeViewMsg_SetCacheCapacities(min_dead_capacity, | 330 host->Send(new ChromeViewMsg_SetCacheCapacities(min_dead_capacity, |
336 max_dead_capacity, | 331 max_dead_capacity, |
337 capacity)); | 332 capacity)); |
338 } | 333 } |
339 ++allocation; | 334 ++allocation; |
340 } | 335 } |
341 } | 336 } |
342 | 337 |
343 void WebCacheManager::ClearRendererCache( | 338 void WebCacheManager::ClearRendererCache( |
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441 if (idle >= TimeDelta::FromMinutes(kRendererInactiveThresholdMinutes)) { | 436 if (idle >= TimeDelta::FromMinutes(kRendererInactiveThresholdMinutes)) { |
442 // Moved to inactive status. This invalidates our iterator. | 437 // Moved to inactive status. This invalidates our iterator. |
443 inactive_renderers_.insert(*iter); | 438 inactive_renderers_.insert(*iter); |
444 active_renderers_.erase(*iter); | 439 active_renderers_.erase(*iter); |
445 iter = active_renderers_.begin(); | 440 iter = active_renderers_.begin(); |
446 continue; | 441 continue; |
447 } | 442 } |
448 ++iter; | 443 ++iter; |
449 } | 444 } |
450 } | 445 } |
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