Plug any USB external drive and this is repeated in system.log

Model name: iMac

Model identifier: iMac17, 1

Processor name: Intel Core i7

Processor speed: 4 GHz

Number of processors: 1

Total number of Cores: 4

(By heart) L2 Cache: 256 KB

L3 Cache: 8 MB

Memory: 32 GB

Boot ROM version: IM171.0105.B09

Version of the SCM (System): 2.34f2

Sep 21 08:29:03 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe224e64a80, 3, 0)

Sep 21 08:29:03 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe224d1bbe0, 3, 0)

Sep 21 08:29:03 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe224f28490, 3, 0)

Sep 21 08:29:03 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe224c2aa30, 3, 0)

Sep 21 08:29:03 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe226921af0, 3, 0)

Sep 21 08:29:04 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe22684a310, 3, 0)

Sep 21 08:29:07 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe226a39a70, 3, 0)

Sep 21 08:29:10 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe226a442b0, 3, 0)

Sep 21 08:29:13 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe2268479f0, 3, 0)

Sep 21 08:29:16 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe224e48df0, 3, 0)

Sep 21 08:29:19 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe226828e60, 3, 0)

Sep 21 08:29:22 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe224f2a300, 3, 0)

Sep 21 08:29:25 Parker-6 logd [70]: _handle_cache_delete_with_urgency (0x7fe224f287b0, 3, 0)

Sep 21 08:29:28 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe226848ad0, 3, 0)

Sep 21 08:29:31 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe226a53cd0, 3, 0)

Sep 21 08:29:34 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe224d261d0, 3, 0)

Sep 21 08:29:37 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe226843e60, 3, 0)

Sep 21 08:29:40 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe224e4ae10, 3, 0)

Sep 21 08:29:52 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe224f25080, 3, 0)

Sep 21 08:29:52 logd Parker-6 [70]: _volume_contains_cached_data (is/private/var/db/diagnostics/en /)-YES

Sep 21 08:29:52 logd Parker-6 [70]: 72375512 bytes purgeable space from log files

Sep 21 08:29:52 logd Parker-6 [70]: _purge_uuidtext runs only to emergency 0 (3)

Sep 21 08:29:52 logd Parker-6 [70]: 0 bytes of purgeable space from files uuidtext

Sep 21 08:29:55 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe226921af0, 3, 0)

Sep 21 08:29:55 logd Parker-6 [70]: _volume_contains_cached_data (is/private/var/db/diagnostics/en /)-YES

Sep 21 08:29:55 logd Parker-6 [70]: 72375512 bytes purgeable space from log files

Sep 21 08:29:55 logd Parker-6 [70]: _purge_uuidtext runs only to emergency 0 (3)

Sep 21 08:29:55 logd Parker-6 [70]: 0 bytes of purgeable space from files uuidtext

Sep 21 08:29:58 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe226a4cf30, 3, 0)

Sep 21 08:29:58 logd Parker-6 [70]: _volume_contains_cached_data (is/private/var/db/diagnostics/en /)-YES

Sep 21 08:29:58 logd Parker-6 [70]: 72375512 bytes purgeable space from log files

Sep 21 08:29:58 logd Parker-6 [70]: _purge_uuidtext runs only to emergency 0 (3)

Sep 21 08:29:58 logd Parker-6 [70]: 0 bytes of purgeable space from files uuidtext

21 sep 08:30:01 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe226a53c70, 3, 0)

21 sep 08:30:01 logd Parker-6 [70]: _volume_contains_cached_data (is/private/var/db/diagnostics/en /)-YES

21 sep 08:30:01 logd Parker-6 [70]: 72375512 bytes purgeable space from log files

21 sep 08:30:01 logd Parker-6 [70]: _purge_uuidtext runs only to emergency 0 (3)

21 sep 08:30:01 logd Parker-6 [70]: 0 bytes of purgeable space from files uuidtext

21 sep 08:30:04 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe226b33af0, 3, 0)

21 sep 08:30:04 logd Parker-6 [70]: _volume_contains_cached_data (is/private/var/db/diagnostics/en /)-YES

21 sep 08:30:04 logd Parker-6 [70]: 72375512 bytes purgeable space from log files

21 sep 08:30:04 logd Parker-6 [70]: _purge_uuidtext runs only to emergency 0 (3)

21 sep 08:30:04 logd Parker-6 [70]: 0 bytes of purgeable space from files uuidtext

21 sep 08:30:07 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe226a57da0, 3, 0)

21 sep 08:30:07 logd Parker-6 [70]: _volume_contains_cached_data (is/private/var/db/diagnostics/en /)-YES

21 sep 08:30:07 logd Parker-6 [70]: 72375512 bytes purgeable space from log files

21 sep 08:30:07 logd Parker-6 [70]: _purge_uuidtext runs only to emergency 0 (3)

21 sep 08:30:07 logd Parker-6 [70]: 0 bytes of purgeable space from files uuidtext

21 sep 08:30:10 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe226921d50, 3, 0)

21 sep 08:30:10 logd Parker-6 [70]: _volume_contains_cached_data (is/private/var/db/diagnostics/en /)-YES

21 sep 08:30:10 logd Parker-6 [70]: 72375512 bytes purgeable space from log files

21 sep 08:30:10 logd Parker-6 [70]: _purge_uuidtext runs only to emergency 0 (3)

21 sep 08:30:10 logd Parker-6 [70]: 0 bytes of purgeable space from files uuidtext

21 sep 08:30:13 logd Parker-6 [70]: _handle_cache_delete_with_urgency (0x7fe22684a310, 3, 0)

21 sep 08:30:13 logd Parker-6 [70]: _volume_contains_cached_data (is/private/var/db/diagnostics/en /)-YES

21 sep 08:30:13 logd Parker-6 [70]: 72375512 bytes purgeable space from log files

21 sep 08:30:13 logd Parker-6 [70]: _purge_uuidtext runs only to emergency 0 (3)

Yes, same here. Retina MBP 13 ". And it seems only to get a set of entries for each USB drive connected. I have only USB 2.0 drives if that helps. Very annoying. And confusing. I hope that macOS is not cached the contents of USB drives.

Tags: Mac OS & System Software

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