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Daniel Lemire

lemire.me

2019

Amazon’s new ARM servers: Graviton 2original ↗
11 Dec 2019
Science and Technology links (December 7th 2019)original ↗
7 Dec 2019
AMD Zen 2 and branch mispredictionsoriginal ↗
6 Dec 2019
Instructions per cycle: AMD Zen 2 versus Inteloriginal ↗
5 Dec 2019
Better computational complexity does not imply better speedoriginal ↗
26 Nov 2019
Memory parallelism: AMD Rome versus Inteloriginal ↗
25 Nov 2019
Cloud computing: a story of incentivesoriginal ↗
20 Nov 2019
Science and Technology links (November 16th 2019)original ↗
16 Nov 2019
Unrolling your loops can improve branch predictionoriginal ↗
12 Nov 2019
Adding a (predictable) branch to existing code can increase branch mispredictionsoriginal ↗
6 Nov 2019
Parsing numbers in C++: streams, strtod, from_charsoriginal ↗
31 Oct 2019
Science and Technology links (October 26th 2019)original ↗
26 Oct 2019
How expensive is it to parse numbers from a string in C++?original ↗
26 Oct 2019
Benchmarking is hard: processors learn to predict branchesoriginal ↗
16 Oct 2019
Mispredicted branches can multiply your running timesoriginal ↗
15 Oct 2019
Science and Technology (October 12th 2019)original ↗
12 Oct 2019
The price of a MacBook Air worldwideoriginal ↗
7 Oct 2019
Science and Technology links (September 28th 2019)original ↗
28 Sept 2019
Doubling the speed of std::uniform_int_distribution in the GNU C++ library (libstdc++)original ↗
28 Sept 2019
Science and Technology links (September 21st 2019)original ↗
21 Sept 2019
My kindergarten storyoriginal ↗
20 Sept 2019
How far can you scale interleaved binary searches?original ↗
20 Sept 2019
Science and Technology links (September 14th 2019)original ↗
14 Sept 2019
Speeding up independent binary searches by interleaving themoriginal ↗
14 Sept 2019
Science and Technology links (September 7th 2019)original ↗
7 Sept 2019
Passing integers by reference can be expensive…original ↗
5 Sept 2019
Science and Technology links (August 31st 2019)original ↗
31 Aug 2019
How fast can scancount be?original ↗
30 Aug 2019
Science and Technology links (August 24th 2019)original ↗
24 Aug 2019
Science and Technology links (August 17th 2019)original ↗
17 Aug 2019
Faster threshold queries with cache-sensitive scancountoriginal ↗
16 Aug 2019
Science and Technology links (August 10th 2019original ↗
10 Aug 2019
Science and Technology links (August 3rd 2019)original ↗
4 Aug 2019
JSON parsing: simdjson vs. JSON for Modern C++original ↗
2 Aug 2019
A new release of simdjson: runtime dispatching, 64-bit ARM support and moreoriginal ↗
1 Aug 2019
Science and Technology links (July 27th 2019)original ↗
27 Jul 2019
How fast can a BufferedReader read lines in Java?original ↗
26 Jul 2019
Programming competition with $1000 in prizes: make my code readable!original ↗
23 Jul 2019
Arbitrary byte-to-byte maps using ARM NEON?original ↗
23 Jul 2019
Science and Technology links (July 20th 2019)original ↗
20 Jul 2019
Science and Technology links (July 13th 2019)original ↗
13 Jul 2019
Parsing JSON quickly on tiny chips (ARM Cortex-A72 edition)original ↗
11 Jul 2019
Parsing JSON using SIMD instructions on the Apple A12 processororiginal ↗
10 Jul 2019
Science and Technology links (July 6th, 2019)original ↗
6 Jul 2019
A fast 16-bit random number generator?original ↗
3 Jul 2019
Science and Technology links (June 29th 2019)original ↗
29 Jun 2019
Bounding the cost of the intersection between a small array and a large arrayoriginal ↗
27 Jun 2019
Science and Technology links (June 22nd 2019)original ↗
22 Jun 2019
How fast is getline in C++?original ↗
18 Jun 2019
What should we do with “legacy” Java 8 applications?original ↗
17 Jun 2019
Science and Technology links (June 15th 2019)original ↗
15 Jun 2019
Science and Technology links (June 7th 2019)original ↗
8 Jun 2019
Nearly Divisionless Random Integer Generation On Various Systemsoriginal ↗
6 Jun 2019
Science and Technology links (June 1st 2019)original ↗
1 Jun 2019
Science and Technology links (May 25th 2019)original ↗
25 May 2019
Measuring the system clock frequency using loops (Intel and ARM)original ↗
19 May 2019
Science and Technology links (May 18th 2019)original ↗
18 May 2019
Building better software with better tools: sanitizers versus valgrindoriginal ↗
16 May 2019
Bitset decoding on Apple’s A12original ↗
15 May 2019
Setting up a ROCKPro64 (powerful single-card computer)original ↗
14 May 2019
Science and Technology links (May 11th 2019)original ↗
11 May 2019
Almost picking N distinct numbers at randomoriginal ↗
7 May 2019
Science and Technology links (May 4th 2019)original ↗
4 May 2019
Really fast bitset decoding for “average” densitiesoriginal ↗
3 May 2019
Science and Technology links (April 27th 2019)original ↗
27 Apr 2019
Speeding up a random-access function?original ↗
27 Apr 2019
The shopper’s dilemma: wait for new technology or buy now?original ↗
24 Apr 2019
Science and Technology links (April 20th 2019)original ↗
20 Apr 2019
Parsing short hexadecimal strings efficientlyoriginal ↗
17 Apr 2019
Science and Technology links (April 13th 2019)original ↗
13 Apr 2019
Why are unrolled loops faster?original ↗
12 Apr 2019
Science and Technology links (April 6th 2019)original ↗
6 Apr 2019
Science and Technology links (March 30th 2019)original ↗
30 Mar 2019
Java is not a safe languageoriginal ↗
28 Mar 2019
Hasty comparison: Skylark (ARM) versus Skylake (Intel)original ↗
26 Mar 2019
Technological agingoriginal ↗
26 Mar 2019
Science and Technology links (March 23rd 2019)original ↗
23 Mar 2019
ARM and Intel have different performance characteristics: a case study in random number generationoriginal ↗
20 Mar 2019
The fastest conventional random number generator that can pass Big Crush?original ↗
19 Mar 2019
Don’t read your data from a straworiginal ↗
18 Mar 2019
Science and Technology links (March 16th 2019)original ↗
16 Mar 2019
Age and the productivity of professorsoriginal ↗
14 Mar 2019
Multiplying by the inverse is not the same as the divisionoriginal ↗
12 Mar 2019
Science and Technology links (March 9th 2019)original ↗
9 Mar 2019
Should our kids use pencils or keyboards?original ↗
5 Mar 2019
Science and Technology links (March 2nd, 2019)original ↗
2 Mar 2019
Parsing JSON quickly: early comparisons in the wildoriginal ↗
2 Mar 2019
Science and Technology links (February 24th, 2019)original ↗
24 Feb 2019
More fun with fast remainders when the divisor is a constantoriginal ↗
20 Feb 2019
Science and Technology links (February 16th, 2019)original ↗
16 Feb 2019
My iPad Pro experiment: almost two years lateroriginal ↗
14 Feb 2019
Science and Technology links (February 9th, 2019)original ↗
9 Feb 2019
Faster remainders when the divisor is a constant: beating compilers and libdivideoriginal ↗
8 Feb 2019
Science and Technology links (February 3rd, 2019)original ↗
3 Feb 2019
New Web hostoriginal ↗
1 Feb 2019
Web caching: what is the right time-to-live for cached pages?original ↗
1 Feb 2019
My blog can’t keep up: 500 errors all overoriginal ↗
31 Jan 2019
What is the space overhead of Base64 encoding?original ↗
30 Jan 2019
Data scientists need to learn about significant digitsoriginal ↗
29 Jan 2019
Rethinking Hamming’s questionsoriginal ↗
29 Jan 2019
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