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* ExtensionStructure: first basic test of lookahead task stealingDouglas Rumbaugh2024-02-122-1/+14
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* ExtensionStructure: Added simulated reconstruction lookaheadDouglas Rumbaugh2024-02-121-28/+88
| | | | | The reconstruction task procedure can now simulate future reconstructions to a specified depth.
* MutableBuffer: Allow hwm to equal lwmDouglas Rumbaugh2024-02-121-1/+1
| | | | | The high watermark and low watermark can now be equal, to allow for blocking reconstruction without requiring odd buffer sizes.
* Refactored Reconstruction TasksDouglas Rumbaugh2024-02-125-20/+77
| | | | | Added a ReconVector type to make it easier to do load balancing by shifting tasks around, and clean up a few interfaces.
* Added structure state vector w/ scratch version for reconstructionDouglas Rumbaugh2024-02-121-55/+89
| | | | | | | | | | | | | This approach should allow us to "simulate" a reconstruction to monitor the future state of the structure. The idea being that we can then add pre-emptive reconstructions to load balance and further smooth the tail latency curve. If a given reconstruction is significantly smaller than the next one will be, we can move some of the next one's work preemptively into the current one. The next phase is to do the simulation within the scratch_vector and then do a second pass examining the state of that reconstruction. In principle, we could look arbitrarily far ahead using this technique.
* Benchmark updatesDouglas Rumbaugh2024-02-093-2/+248
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* Update README.mdDouglas B. Rumbaugh2024-02-091-4/+4
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* Readme updateDouglas Rumbaugh2024-02-091-0/+53
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* Merge pull request #1 from dbrumbaugh/new-bufferDouglas B. Rumbaugh2024-02-09101-6298/+8893
|\ | | | | Initial Concurrency Implementation
| * Updated to newer version of psudb-commonnew-bufferDouglas Rumbaugh2024-02-091-0/+0
| | | | | | | | Some bugfixes in here greatly improve BloomFilter performance.
| * Removed centralized version structureDouglas Rumbaugh2024-02-092-35/+8
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| * Framework: Fixed a bug where tagged deletes didn't release the epochDouglas Rumbaugh2024-02-093-11/+28
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| * Comment updates/fixesDouglas Rumbaugh2024-02-0924-104/+224
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| * Updated VPTree to new shard/query interfacesDouglas Rumbaugh2024-02-088-320/+319
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| * Merge branch 'new-buffer' of github.com:dbrumbaugh/dynamic-extension into ↵Douglas Rumbaugh2024-02-080-0/+0
| |\ | | | | | | | | | new-buffer
| | * ISAMTree: added comment explaining the compiler fenceDouglas Rumbaugh2024-02-081-0/+4
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| | * Added compiler fence to block reorderingDouglas Rumbaugh2024-02-082-2/+4
| | | | | | | | | | | | I'm reasonably certain that this is a compiler bug...
| * | Added compiler fence to block reorderingDouglas Rumbaugh2024-02-082-2/+8
| |/ | | | | | | I'm reasonably certain that this is a compiler bug...
| * Fixed a slight synchronization bug in Epoch retirement "properly"Douglas Rumbaugh2024-02-081-10/+27
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| * Fixed benchmark memory leakDouglas Rumbaugh2024-02-081-0/+2
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| * Cleaned up shard files (except VPTree)Douglas Rumbaugh2024-02-0728-1674/+859
| | | | | | | | | | | | Cleaned up shard implementations, fixed a few bugs, and set up some tests. There's still some work to be done in creating tests for the weighted sampling operations for the alias and aug btree shards.
| * Fully realized shard concept interfaceDouglas Rumbaugh2024-02-0733-686/+77
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| * Fully implemented Query concept and adjusted queries to use itDouglas Rumbaugh2024-02-0713-56/+54
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| * BufferView: Adjusted BV to avoid repeated modulus operationsDouglas Rumbaugh2024-02-053-15/+190
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| * Set up tombstone deletes properlyDouglas Rumbaugh2024-02-058-56/+72
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| * updated btree benchmarkDouglas Rumbaugh2024-01-311-0/+4
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| * IRS bench (replication of existing one)Douglas Rumbaugh2024-01-311-0/+125
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| * BTree benchmarkDouglas Rumbaugh2024-01-313-6/+128
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| * Updated throughput bench to use SOSDDouglas Rumbaugh2024-01-312-21/+39
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| * temporary hack to get workingDouglas Rumbaugh2024-01-311-6/+12
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| * Adjusted epoch transition methodologyDouglas Rumbaugh2024-01-314-153/+121
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| * More locking!Douglas Rumbaugh2024-01-311-0/+2
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| * Updated insert query throughput to use IRS queriesDouglas Rumbaugh2024-01-314-123/+25
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| * insert query tput updatesDouglas Rumbaugh2024-01-311-2/+7
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| * Possibly fixed epoch retirement sync errorDouglas Rumbaugh2024-01-311-1/+5
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| * Insert throughput benchmarkDouglas Rumbaugh2024-01-313-46/+220
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| * Query/Insert intermix benchmarksDouglas Rumbaugh2024-01-314-41/+162
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| * Temporary thread affinity for reconstructionDouglas Rumbaugh2024-01-313-7/+40
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| * TrieSpline + testsDouglas Rumbaugh2024-01-304-301/+117
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| * Benchmarking updatesDouglas Rumbaugh2024-01-309-30/+495
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| * Multithreaded Insertion BenchmarkDouglas Rumbaugh2024-01-241-11/+37
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| * DynamicExtension: Fixed reconstruction trigger data raceDouglas Rumbaugh2024-01-241-4/+7
| | | | | | | | | | Tweak the reconstruction trigger code to ensure that multiple reconstructions won't be triggered at the same time.
| * Added watermark testing to CMakeDouglas Rumbaugh2024-01-221-0/+6
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| * WAtermark testing benchmarkDouglas Rumbaugh2024-01-221-0/+53
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| * Adjusted recon_benchmark and properly shutdown FIFOSchedulerDouglas Rumbaugh2024-01-222-12/+25
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| * Benchmarking: updated insert_query_tput to use better rngDouglas Rumbaugh2024-01-221-3/+14
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| * FIFOScheduler: added automake wakeupDouglas Rumbaugh2024-01-221-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | Sometimes, when the max thread count is exceeded, it is possible for the scheduler to lock up. This is because the scheduler is only run when a new job is put into the queue, and so it is possible for a job to be blocked by thread limitations and be left sitting in the queue. If the main program is waiting on this job to finish before scheduling a new one, then the system deadlocks. I added a second background thread to the scheduler that wakes the scheduler up every 20us to resolve this and prevent these deadlocks.
| * Moved some benchmarks over to range countDouglas Rumbaugh2024-01-222-6/+6
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| * Added RangeCount queryDouglas Rumbaugh2024-01-224-0/+386
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| * Initial rough-out of internal statistics trackerDouglas Rumbaugh2024-01-198-36/+160
| | | | | | | | | | | | Need to figure out the best way to do the detailed tracking in a concurrent manner. I was thinking just an event log, with parsing routines for extracting statistics. But that'll be pretty slow.