Make terminal cache small.

Bug: 10699291

Before:
(0)  2997.63 (0.98%)
(1)  303760.77 (98.92%)
(2)  274.94 (0.09%)
(66)  0.38 (0.00%)
Total 307062.27 (sum of others 307033.73)

After:
(0)  2953.22 (0.96%)
(1)  304633.86 (98.93%)
(2)  293.76 (0.10%)
(66)  0.38 (0.00%)
Total 307915.65 (sum of others 307881.22)

Change-Id: I6905abeb590ef50d48ddfcd8ef8b5351af399150