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path: root/src/svm/fifo_segment.h
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2021-06-17session: optimize ct fifo segment allocationsFlorin Coras1-0/+1
Allocate per app pair segments with space for more than one fifo. Type: feature Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ib96fe12b899cb14ff20c0be607814011e2c3fc6a
2021-06-16vcl: fix fifo sharingFlorin Coras1-0/+1
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Iec1fe8315a057214901250d5fb06d1c1e33dda46
2021-04-20svm: allow external chunk alloc on segmentFlorin Coras1-0/+8
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I89f9caa8dd44dc640615a58fe7708f388fdd84e9
2021-02-22vcl: cleanup fifos detached from segmentsFlorin Coras1-0/+10
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I412024731c1f561680736ad7bfabb99b595e3dff
2021-01-28svm vcl: add helper fn that discovers mqs in segmentFlorin Coras1-0/+9
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I1b083ee793a7cf91b1001bfe88353fa5e6515c42
2021-01-09session svm: fix fifo migrationFlorin Coras1-2/+2
Allocate and attach a new pair of private fifos in the right private slice when a session is cloned. This ensures that private fifos are not shared between workers. Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ib700d18104d2ca79aa8a07434cdcdcab0bef13a5
2020-12-29svm vcl: allow random offsets for fifo segments in appsFlorin Coras1-2/+15
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I1658a9c19d8eae4c9a42c0a111d4ad343b8eb8a4
2020-12-29svm: allow mq attachments at random offsetsFlorin Coras1-0/+33
Type: feature Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ic373cd2c11272da539eb4b0db27227f36f2f9688
2020-12-24svm: split fifo into private and shared structsFlorin Coras1-0/+4
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Id8e77e8b2623be719fd43a95e181eaa5b7df2b6e
2020-12-23svm: remove fifo segment heapFlorin Coras1-10/+9
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I518e096fe13847759806ff62009e73fd8f7451b7
2020-09-29svm: fix max fifo sizeFlorin Coras1-1/+1
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I52ac28ed6d420f03852a425b5a16a7eb8e94b628
2020-04-09session: update fifo slice on session migrationFlorin Coras1-0/+4
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ic5fb0f95c58ad70925a365004fe911ac8f2d2382
2020-03-05session: fix segment search on fifo allocFlorin Coras1-0/+2
Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Iaa4f9b0ec31a58f7406774f73e1a089bfcf4ac30
2020-02-26svm: remove chunk add functionFlorin Coras1-1/+17
Type: refactor Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I606eabbe0f3f387529e77d2483f5d63db7bde88a
2020-02-25session svm: tracking segment memory usageRyujiro Shibuya1-0/+64
1. segment manager would attempt to balance the usages across the segments, when it allocate fifos 2. the memory presure level is determined per fifo-segment 3. updated unit test 4. updated cli output for segments Type: feature Signed-off-by: Ryujiro Shibuya <ryujiro.shibuya@owmobility.com> Change-Id: I2923f3e0a43dd919196a0cb2cd55e098fde6cf66
2020-02-25svm: refactor fifoFlorin Coras1-38/+6
Type: refactor Switch from a wrapped byte space to a "continuous" one wherein fifo chunks are appended to the fifo as more data is enqueued and chunks are removed as data is dequeued. The fifo is still subject to a maximum size, i.e., maximum number of bytes that can be enqueued, so the max number of chunks associated to the fifo is also constrained. When enqueueing data, which must fit within the available free space, if not enough "supporting" chunk memory is available, the fifo asks the fifo segment for enough chunk memory to ensure that the write can succeed. To avoid allocating large amounts of small chunks due to small writes, if possible, the size of the chunks requested is lower capped by min_alloc. When dequeuing data, all the chunks that have been completely drained, i.e., head moved beyond the chunks’ end bytes, are unlinked from the fifo and returned to the fifo segment. The one exception to this is the last chunk which is never unlinked. Change-Id: I98c1dbd9135fb79650365c7e40c29238b96cd4ee Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-12-19session: reserve memory for rbtreeFlorin Coras1-0/+2
Type: fix Change-Id: I2b89f6e4c09297e3712d88cd25c80a806d3005aa Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-12-12session svm: support for segments larger than 4GBFlorin Coras1-3/+3
Type: feature Change-Id: I7d3017bbb369261d74f51807a226f2c12f45291c Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-12-12session svm: per thread fifo segment slicesFlorin Coras1-13/+26
Type: refactor Change-Id: I9be652e56cdb48b0aee3253f7ce8d9bed299d824 Signed-off-by: Florin Coras <fcoras@cisco.com> Signed-off-by: Dave Barach <dave@barachs.net>
2019-06-26svm: fix fifo segment free chunk bytes accountingFlorin Coras1-1/+1
Type:fix Change-Id: Icab89337eb3dbdc93d0fb453cfd34090026072b7 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-05-14svm: improve fifo segment prealloc supportFlorin Coras1-1/+57
- track fifo segment free and chunk freelist memory - improve fifo alloc. If there are enough chunks to satisfy a fifo allocation request but not enough free memory, allocate a multi-chunk fifo - add apis to preallocate chunks and fifo headers - more tests Change-Id: If18dba7ab856272c9f565d36ac36365139793e0b Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-05-07svm: decouple fifo and default chunk allocationFlorin Coras1-1/+1
Default chunk is no longer embedded into the fifo and on free is returned to its respective chunk list. Change-Id: Ifc5d214eaa6eca44356eb79dd75650fb8569113f Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-05-03session/svm: apis for fifo shrinkingFlorin Coras1-0/+9
Change-Id: Ie519683bb90aae6fb95f2a09e251cded1890ed41 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-04-26svm: fifo segment support for chunk allocationFlorin Coras1-7/+26
Change-Id: Ie96706b4d8bcb32d2d5f065bc765f95f4e9369e7 Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-04-25session: cleanup segment manager and fifo segmentFlorin Coras1-0/+139
Change-Id: I984f347fb465c0c405cef668d8690457e81788e2 Signed-off-by: Florin Coras <fcoras@cisco.com>