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20405fc394419d434d3ea09b2e62e4edcb282421 by Christian Blichmann <cblichmann@google.com>:
Include `status` subdirectory in main `CMakeLists.txt`
PiperOrigin-RevId: 297125966
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101087af9689612bdda679ee0869e5cde4472244 by Matt Kulukundis <kfm@google.com>:
Fix typo
PiperOrigin-RevId: 296991360
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55ff5bc6970d46214c0459d3a7a23973c7dc69b9 by Andy Getzendanner <durandal@google.com>:
Extract logging's ErrnoSaver to absl::base_internal and use it in a couple other places.
PiperOrigin-RevId: 296969168
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b7cd7550297d53766576f751436617200c65831b by Abseil Team <absl-team@google.com>:
Internal change
PiperOrigin-RevId: 296951474
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8c04c73fc53f9a09c3e2400812b931157f35fe07 by Andy Soffer <asoffer@google.com>:
Auto-generate list of files in the DLL, and add new build targets to the DLL.
PiperOrigin-RevId: 296932061
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2f77829e196094f1addefd8ac2ac9e398c5b6100 by Andy Soffer <asoffer@google.com>:
Fix bug introduced by DLL where we couldn't build shared libraries on
non-windows platforms.
Fixes#623
PiperOrigin-RevId: 296919347
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b768163dbbff0c561b9dff0218a699e5e4fd33f3 by Abseil Team <absl-team@google.com>:
typo: microprosessor
PiperOrigin-RevId: 296904933
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b185da0dac44c91855373f0723df9242cbfb3db3 by Matthew Brown <matthewbr@google.com>:
Internal cleanup
PiperOrigin-RevId: 296509711
GitOrigin-RevId: 20405fc394419d434d3ea09b2e62e4edcb282421
Change-Id: I55c8eba6f353ceb337455ae144ab743ea21edbef
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5804cc13b413412988248835459b90cd15ec43d9 by Abseil Team <absl-team@google.com>:
Mark raw_hash_set::clear() with the ABSL_ATTRIBUTE_REINITIALIZES attribute.
This prevents false positives in the clang-tidy check bugprone-use-after-move;
it allows reset() to be called on a moved-from raw_hash_set without any
warnings, and the raw_hash_set will thereafter be regarded as initialized again.
PiperOrigin-RevId: 230717196
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ff5961a5600ae19b69a9cba6912126cdf2858f38 by CJ Johnson <johnsoncj@google.com>:
Swaps DisableIfIntegral<> for EnableIfInputIterator<> for Iterator member functions of InlinedVector
PiperOrigin-RevId: 230559521
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3f9754ccbeecbd40f235c6f2465279e045ff51d9 by Derek Mauro <dmauro@google.com>:
Import GitHub PR 254
https://github.com/abseil/abseil-cpp/pull/254
Fixes warnings from -Wclass-memaccess (base_internal::ThreadIdentity?
with no trivial copy-assignment).
PiperOrigin-RevId: 230536048
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8af03a654ce9a4a7f55384bc7eb1ed64878ac2ec by Chris Kennelly <ckennelly@google.com>:
absl: cap SpinLock backoff to 4ms
The current backoff logic has 3 problems:
1. It can produce too high values (up to 256ms), which can negatively
affect tail latency. The value was chosen long time ago and now it's
a good idea to reconsider it.
2. It does not have low bound, so on any iteration it can produce
a very small value that will lead to unnecessary cpu consumption.
3. It does not increase low bound with the number of iterations.
So if the SpinLock is actually somehow locked for a very prolonged time,
a waiter can still wake periodically.
Rework the logic to solve these problems.
Add lower bound of 128us, no code should rely on absence of episodic
delays in this range as they can occur everywhere.
Lower upper bound to 4ms. A thread sleeping for 4ms does not consume
significant cpu time (see below).
Grow lower bound with the number of iterations.
This is cpu consumption of a process doing usleep(x) in a loop
(sampled with ps):
64us -> 4.0%
128us -> 2.7%
256us -> 3.5%
512us -> 2.8%
1024us -> 1.6%
2048us -> 0.6%
4096us -> 0.3%
8192us -> 0.0%
Few millisecond sleeps do not consume significant time.
PiperOrigin-RevId: 230534015
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37ebba92289ca556cb2412cd8b3cb4c1ead3def7 by Samuel Benzaquen <sbenza@google.com>:
Add override and dispose hooks to the hashtable sampler.
PiperOrigin-RevId: 230353438
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89c8f90175233ce9964eb3412df04e8a3cff0c0f by Andy Getzendanner <durandal@google.com>:
Fix a comment typo.
PiperOrigin-RevId: 229986838
GitOrigin-RevId: 5804cc13b413412988248835459b90cd15ec43d9
Change-Id: Iedb5e2cc9c0b924635c1c87b537780ab6b5b899f
