June 2018
Beginner to intermediate
240 pages
3h 54m
Russian
Content preview from Алгоритмы и структуры данных. Извлечение информации на языке Java
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142
Глава 11. HashMap
величина расчетного тангенса угла наклона была близка к 1;
это согласуется с нашим анализом. Вы должны получить нечто
подобное.
Измените ProfileMapPut.java так, чтобы он профилировал
вашу реализацию, MyHashMap, вместо HashMap от Java. Запустите
профайлер еще раз и посмотрите, приближен ли тангенс угла
наклона к 1. Возможно, придется настроить параметры startN
и endMillis для нахождения пределов размеров задачи, где
время автономной работы составляет более нескольких милли-
секунд, но не более нескольких тысяч.
Запустив этот код, я получил сюрприз: тангенс угла наклона
был около 1,7. Это говорит о том, что данная реализация не яв-
ляется постоянной. Она содержит «ошибку производитель-
ности».
Прежде чем читать следующий раздел, ...
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