diff options
Diffstat (limited to 'pkg/sentry/time/sampler_amd64.go')
| -rw-r--r-- | pkg/sentry/time/sampler_amd64.go | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/pkg/sentry/time/sampler_amd64.go b/pkg/sentry/time/sampler_amd64.go new file mode 100644 index 000000000..72cb74be3 --- /dev/null +++ b/pkg/sentry/time/sampler_amd64.go @@ -0,0 +1,26 @@ +// Copyright 2018 The gVisor Authors. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +//+build amd64 + +package time + +const( + // defaultOverheadTSC is the default estimated syscall overhead in TSC cycles. + // It is further refined as syscalls are made. + defaultOverheadCycles = 1 * 1000 + + // maxOverheadCycles is the maximum allowed syscall overhead in TSC cycles. + maxOverheadCycles = 100 * defaultOverheadCycles +) |