Common platform:
Bits: int=32, long=64, long long=64, size_t=64, void*=64
Platform: Linux-4.1.5-200.fc22.x86_64-x86_64-with-fedora-22-Twenty_Two
Timer info: namespace(adjustable=False, implementation='clock_gettime(CLOCK_MONOTONIC)', monotonic=True, resolution=1e-09)
Python unicode implementation: PEP 393
CPU model: Intel(R) Core(TM) i7-3520M CPU @ 2.90GHz
Timer: time.perf_counter
CFLAGS: -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes

Platform of campaign ucs1_before:
Timer precision: 55 ns
Python version: 3.6.0a0 (default:5b9ffea7e7c3, Oct 5 2015, 13:55:58) [GCC 5.1.1 20150618 (Red Hat 5.1.1-4)]
SCM: hg revision=5b9ffea7e7c3 tag=tip branch=default date="2015-10-05 13:49 +0200"
Date: 2015-10-05 13:56:25

Platform of campaign ucs1_after:
Timer precision: 53 ns
SCM: hg revision=5b9ffea7e7c3+ tag=tip branch=default date="2015-10-05 13:49 +0200"
Python version: 3.6.0a0 (default:5b9ffea7e7c3+, Oct 5 2015, 13:50:18) [GCC 5.1.1 20150618 (Red Hat 5.1.1-4)]
Date: 2015-10-05 13:54:48

-----------------------+-------------+-----------
ascii                  | ucs1_before | ucs1_after
-----------------------+-------------+-----------
100 x 10**1 characters | 1.86 us (*) |    1.87 us
100 x 10**3 characters |  152 us (*) |     151 us
100 x 10**2 characters | 15.6 us (*) |    15.5 us
100 x 10**4 characters | 1.52 ms (*) |    1.52 ms
-----------------------+-------------+-----------
Total                  | 1.69 ms (*) |    1.69 ms
-----------------------+-------------+-----------

-----------------------+-------------+-----------
latin1                 | ucs1_before | ucs1_after
-----------------------+-------------+-----------
100 x 10**1 characters | 1.82 us (*) |    1.83 us
100 x 10**3 characters |  152 us (*) |     152 us
100 x 10**2 characters | 15.4 us (*) |    15.5 us
100 x 10**4 characters | 1.53 ms (*) |    1.52 ms
-----------------------+-------------+-----------
Total                  |  1.7 ms (*) |    1.69 ms
-----------------------+-------------+-----------

--------+-------------+-----------
Summary | ucs1_before | ucs1_after
--------+-------------+-----------
ascii   | 1.69 ms (*) |    1.69 ms
latin1  |  1.7 ms (*) |    1.69 ms
--------+-------------+-----------
Total   | 3.39 ms (*) |    3.39 ms
--------+-------------+-----------