ENH: Add a skip_benchmark_if and skip_params_if

[HaoZeke]

Closes #16.

from asv_runner.benchmarks.mark import skip_benchmark_if, skip_params_if
import datetime

class TimeSuite:
    """
    An example benchmark that times the performance of various kinds
    of iterating over dictionaries in Python.
    """
    params = [100, 200, 300, 400, 500]
    param_names = ["size"]

    def setup(self, size):
        self.d = {}
        for x in range(size):
            self.d[x] = None

    @skip_benchmark_if(datetime.datetime.now().hour >= 12)
    def time_keys(self, size):
        for key in self.d.keys():
            pass

    @skip_benchmark_if(datetime.datetime.now().hour >= 12)
    def time_values(self, size):
        for value in self.d.values():
            pass

    @skip_benchmark_if(datetime.datetime.now().hour >= 12)
    def time_range(self, size):
        d = self.d
        for key in range(size):
            d[key]

    # Skip benchmarking when size is either 100 or 200 and the current hour is 12 or later.
    @skip_params_if([(100,), (200,)],
                    datetime.datetime.now().hour >= 12)
    def time_dict_update(self, size):
        d = self.d
        for i in range(size):
            d[i] = i

[HaoZeke]

@akihironitta this should cover the checks for CUDA or other conditionals

[akihironitta]

Hi @HaoZeke, thank you so much for working on this! I'll give this a try tomorrow. Do you think we should have tests in this repo?

[HaoZeke]

Hi @HaoZeke, thank you so much for working on this! I'll give this a try tomorrow. Do you think we should have tests in this repo?

I'm not very sure about having tests here, or rather I'm not exactly sure what the best kind of tests would be, since checking the behavior would have to be done with asv, not asv_runner and testing the decorators wouldn't make much sense.