2020-05-01 18:47:41 +00:00
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#!/usr/bin/env bash
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# Sandbox does not provide CAP_NET_ADMIN capability but does have ProcFS mounted at /proc
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# This ensures that OS metrics can be collected
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CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
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2020-12-28 11:46:53 +00:00
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# shellcheck source=../shell_config.sh
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2020-08-01 00:51:12 +00:00
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. "$CURDIR"/../shell_config.sh
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2020-05-01 18:47:41 +00:00
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2022-04-25 05:19:55 +00:00
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# NOTE: netlink taskstruct interface uses rounding to 1KB [1], so we cannot use ${BASH_SOURCE[0]}
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#
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# [1]: https://elixir.bootlin.com/linux/v5.18-rc4/source/kernel/tsacct.c#L101
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tmp_path=$(mktemp "$CURDIR/01268_procfs_metrics.XXXXXX")
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trap 'rm -f $tmp_path' EXIT
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truncate -s1025 "$tmp_path"
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$CLICKHOUSE_LOCAL --profile-events-delay-ms=-1 --print-profile-events -q "SELECT * FROM file('$tmp_path', 'LineAsString') FORMAT Null" |& grep -m1 -F -o -e OSReadChars
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# NOTE: that OSCPUVirtualTimeMicroseconds is in microseconds, so 1e6 is not enough.
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$CLICKHOUSE_LOCAL --profile-events-delay-ms=-1 --print-profile-events -q "SELECT * FROM numbers(10e6) FORMAT Null" |& grep -m1 -F -o -e OSCPUVirtualTimeMicroseconds
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exit 0
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