Update expectations for recent performance.

tools/perf_expectations/perf_expectations.json

Index: tools/perf_expectations/perf_expectations.json
diff --git a/tools/perf_expectations/perf_expectations.json b/tools/perf_expectations/perf_expectations.json
index fc071deb0f8566674b84420d9986b7a29c7eedcb..3cb0c7f29b7a5e6ee5e210470897a7c990ad1fc1 100644
--- a/tools/perf_expectations/perf_expectations.json
+++ b/tools/perf_expectations/perf_expectations.json
@@ -17,7 +17,7 @@
  "mac-release-10.5/moz/times/t": {"delta": 80, "var": 80},
  "mac-release-10.5/startup/warm/t": {"delta": 0, "var": 20},
  "mac-release-10.6/dhtml/times/t": {"delta": -12, "var": 14},
- "mac-release-10.6/intl1/times/t": {"delta": 350, "var": 100},
+ "mac-release-10.6/intl1/times/t": {"delta": 260, "var": 100},
  "mac-release-10.6/intl2/times/t": {"delta": 400, "var": 60},
  "mac-release-10.6/morejs/times/t": {"delta": -40, "var": 50},
  "mac-release-10.6/moz/times/t": {"delta": 35, "var": 50},
@@ -40,8 +40,8 @@
  "xp-release-dual-core/intl2/times/t": {"delta": 0, "var": 30},
  "xp-release-dual-core/morejs/times/t": {"delta": 0, "var": 20},
  "xp-release-dual-core/moz/times/t": {"delta": 0, "var": 20},
- "xp-release-dual-core/moz/total_byte_b/IO_b": {"delta": -270, "var": 90},
- "xp-release-dual-core/moz/total_byte_r/IO_r": {"delta": -285, "var": 90},
+ "xp-release-dual-core/moz/total_byte_b/IO_b": {"delta": -120, "var": 90},
+ "xp-release-dual-core/moz/total_byte_r/IO_r": {"delta": -130, "var": 90},
  "xp-release-dual-core/moz/total_op_b/IO_op_b": {"delta": -1100, "var": 740},
  "xp-release-dual-core/moz/total_op_r/IO_op_r": {"delta": -600, "var": 730},
  "xp-release-dual-core/moz/vm_peak_b/vm_pk_b": {"delta": 700000, "var": 800000},