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+size 15546366372
diff --git a/cf/full/header b/cf/full/header
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index 0000000000000000000000000000000000000000..36d8a7960eec79ca41ce7700d845972620662b7d
--- /dev/null
+++ b/cf/full/header
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+# ts            country      obj                  sz     content tieredHit      ttl             age    cstatus    method     zoneId        
+
+# colo28 
+# ts                    obj                sz     content tier      ttl             age         cstatus  method             
+# 1628639938      14769378147408796115    8688    jpeg    0       2666327358      39582683        miss    GET     s3.amazonaws.com        /media.pinterest.com/150x150/3a/36/13/3a3613c5086a070f43afce13bf856b79.jpg
+
+# all colo 
+# ts             client         colo        obj                    sz    tier    cStatus 
+# 626591102      1433663661      87      10824946938601195600    2944141 0       hit     static-v6.starmakerstudios.com  /production/uploading/recordings/10977524122478104/master.mp4
diff --git a/cf2/README.md b/cf2/README.md
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index 0000000000000000000000000000000000000000..479c196988b156cb0a9ce1ab577a407e785f1880
--- /dev/null
+++ b/cf2/README.md
@@ -0,0 +1,48 @@
+** data set description 
+two datasets, one from clickhouse, one from Nginx-cache, clickhouse dataset has more data, colo information, but missing 1. TTL, 2. zone plan, 3. cacheKey (objID), 4. originReponseChunked, 5. range request. Because size of clickhouse dataset, it is sampled from 1% to 40 by object id. 
+
+** the clickhouse data format 
+timestamp 
+client country (anonymized)
+coloId, 
+obj_id (md5 of host+path+query) 
+obj_id2 (md5 of host+path)
+responseSize 
+content type 
+file extension 
+n level (the number of '/' in path)
+ttl (augment from crawling, not always accurate and still missing 10% data)
+age
+cache status
+method (get/purge)
+zone id (md5 hash)
+client request host (md5 hash)
+edgehost (md5 hash)
+referhost (md5 hash)
+has query string (bool)
+n param in query 
+
+
+** the nginx data format 
+client country
+hot object (bool)
+timestamp
+obj_id
+response body size
+http method
+content type
+file extension
+n level
+expire ttl
+age
+cache status
+zone id (md5 hash) 
+zone plan 
+chunked response
+has query
+n param in query
+cache control
+hostname (sha1 hash)
+http range 
+
+
diff --git a/cf2/cloudflare-research-cache-request/README.md b/cf2/cloudflare-research-cache-request/README.md
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--- /dev/null
+++ b/cf2/cloudflare-research-cache-request/README.md
@@ -0,0 +1,49 @@
+** data set description 
+two datasets, one from clickhouse, one from Nginx-cache, clickhouse dataset has more data, colo information, but missing 1. TTL, 2. zone plan, 3. cacheKey (objID), 4. originReponseChunked, 5. range request. Because size of clickhouse dataset, it is sampled from 1% to 40 by object id. 
+
+** the clickhouse data format 
+timestamp 
+client country (anonymized)
+coloId, 
+obj_id (md5 of host+path+query) 
+obj_id2 (md5 of host+path)
+responseSize 
+content type 
+file extension 
+n level (the number of '/' in path)
+ttl (augment from crawling, not always accurate and still missing 10% data)
+age
+cache status
+method (get/purge)
+zone id (md5 hash)
+client request host (md5 hash)
+edgehost (md5 hash)
+referhost (md5 hash)
+has query string (bool)
+n param in query 
+
+
+** the nginx data format 
+client country
+hot object (bool)
+timestamp
+obj_id
+response body size
+http method
+content type
+file extension
+n level
+expire ttl
+age
+cache status
+zone id (md5 hash) 
+zone plan 
+chunked response
+has query
+n param in query
+cache control
+hostname (sha1 hash)
+http range 
+
+
+
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+1. Files
+This distribution contains the following files:
+     a) README.txt: this file
+     b) *.tgz: I/O trace files, described below
+     c) md5_check.md5: output of md5sum for tgz files
+
+2. I/O trace files
+There are 216 I/O traces from a warehouse (also called a failure domain) of a production cloud block storage system (CBS). The traces are I/O requests from 5584 cloud virtual volumes (CVVs) for ten days (from Oct. 1st to Oct. 10th, 2018). The I/O requests from the CVVs are mapped and redirected to a storage cluster consists of 40 storage nodes (i.e., disks). 
+
+More information about the CBS architecture is available from the ATC '20 paper titled "OSCA: An Online-Model Based Cache Allocation Scheme in Cloud Block Storage Systems". 
+
+Each trace file is named as <date>.tgz.
+
+The date format consists of year(4 char.), month(2 char.), day(2 char.), and hour(2 char.).
+
+Here is an example file name.
+2018-10-01-01.tgz
+  - year : 2018
+  - month : 10 (Oct.)
+  - day : 1st
+  - hour : 1 AM
+
+3. I/O trace file format
+The files are compressed comma-separated text files leveraging "tar" command. The fields in the files are:
+
+Timestamp,Offset,Size,IOType,VolumeID
+
+  - Timestamp is the time the I/O was issued.
+    The timestamp is given as a Unix time (seconds since 1/1/1970).       
+  - Offset is the starting offset of the I/O in sectors from the start of the logical virtual volume.
+    1 sector = 512 bytes
+  - Size is the transfer size of the I/O request in sectors.
+  - IOType is "Read(0)", "Write(1)".
+  - VolumeID is the ID number of a CVV.
+
+4. Some suggestions on the use of the traces
+In addition to using these traces to examine the issues discussed in the ATC '20 paper, they can be used to analyze:
+
+	(1) the CBS access patterns of CVVs by dividing traces for each CVV using the VolumeID.
+	(2) the architecture optimization of CBS by simulating the mapping of I/O requests to storage nodes.
+
+
+5. Attribution.
+Please cite the publication of the ATC '20 paper mentioned above as a reference in any published work using these traces.
+
diff --git a/tencent/tencentPhoto1.sort.zst.xaa b/tencent/tencentPhoto1.sort.zst.xaa
new file mode 100644
index 0000000000000000000000000000000000000000..18e46e90da4353039cca88f965cf2572622d4f02
--- /dev/null
+++ b/tencent/tencentPhoto1.sort.zst.xaa
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d06a466017fb701bf8bb4b4c21c495ace909205be63ec8d749a8ee657cd116bf
+size 50000000000
diff --git a/tencent/tencentPhoto1.sort.zst.xab b/tencent/tencentPhoto1.sort.zst.xab
new file mode 100644
index 0000000000000000000000000000000000000000..10b5a14e7eb61e8b97f69e02782f636abcb7d080
--- /dev/null
+++ b/tencent/tencentPhoto1.sort.zst.xab
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1070156d860e29bf4d0722ab8e74ed35f62b1fe9185668961ea49c4a6d38d12f
+size 19515271875
diff --git a/tencent/tencentPhoto2.sort.zst.xaa b/tencent/tencentPhoto2.sort.zst.xaa
new file mode 100644
index 0000000000000000000000000000000000000000..4870a3b92e59f7d958bef230d005868bc1c56e7c
--- /dev/null
+++ b/tencent/tencentPhoto2.sort.zst.xaa
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:01200201cd8bc04bb1e5828b51e08bb7eee7daf18bdb0e68fbd4fbdfc2073612
+size 50000000000
diff --git a/tencent/tencentPhoto2.sort.zst.xab b/tencent/tencentPhoto2.sort.zst.xab
new file mode 100644
index 0000000000000000000000000000000000000000..39eb759705cacc3d969156c5d223100275177db6
--- /dev/null
+++ b/tencent/tencentPhoto2.sort.zst.xab
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f55cf974ea9bb57d64eb46d1d3b64b2d4004ea0124a267a4c346516b77898554
+size 15291452615
diff --git a/tencent/tencentPhoto_README b/tencent/tencentPhoto_README
new file mode 100644
index 0000000000000000000000000000000000000000..bd8a2b69878561c7ab5441620135e35d609b7a2c
--- /dev/null
+++ b/tencent/tencentPhoto_README
@@ -0,0 +1,34 @@
+These traces were collected as part of the study reported in "Demystifying
+Cache Policies for Photo Stores at Scale: A Tencent Case Study" by Ke Zhou
+et al., published in ICS 2018, DOI 10.1145/3205289.3205299.
+
+The traces are in text format, with fields separated with blanks.
+Here is a sample line:
+
+20160201164604 085abb02a06850729bb01479466420d9e102d325 5 m 12903 1 PHONE 1
+             ^                                        ^ ^ ^     ^ ^     ^ ^
+timestamp----+                                        | | |     | |     | |
+photo ID (checksum)-----------------------------------+ | |     | |     | |
+image format (0 = jpg, 5 = web)-------------------------+ |     | |     | |
+size specification (l, a, o, m, c, b)---------------------+     | |     | |
+return size (bytes)---------------------------------------------+ |     | |
+cache hit (1) or miss (0)-----------------------------------------+     | |
+terminal type (PHONE or PC)---------------------------------------------+ |
+response time (ms; 0 means < 1ms)-----------------------------------------+
+
+The timestamp is in YYYYMMDDHHMMSS format.
+
+Records that have an image format other than 0 or 5 indicate errors
+and should be discarded.
+
+The size specification is l, a, o, m, c, or b, corresponding to increasing
+size categories, with the largest return size observed for each category
+as follows:
+
+        l    33,136
+        a 3,263,749
+        o 4,925,317
+        m 6,043,467
+        c 6,050,183
+        b 8,387,821
+
diff --git a/twr_cdn.zst.xaa b/twr_cdn.zst.xaa
new file mode 100644
index 0000000000000000000000000000000000000000..2ada436a2053cec94e896090b124e72e1926d4a0
--- /dev/null
+++ b/twr_cdn.zst.xaa
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:37f4efa929449268593b2f067ad67cb2d159124307b53d951e71150f87770f3c
+size 50000000000
diff --git a/twr_cdn.zst.xab b/twr_cdn.zst.xab
new file mode 100644
index 0000000000000000000000000000000000000000..8c8d78bbb5c7caab432195d1089e2a3b9b8f40c8
--- /dev/null
+++ b/twr_cdn.zst.xab
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7e3b9c2a45b5f398596a6519e32ae1c5bf2915a8af395eaef1d07efcca361624
+size 37069491200
diff --git a/wiki/wiki.2007.sort.raw.csv.zst.xaa b/wiki/wiki.2007.sort.raw.csv.zst.xaa
new file mode 100644
index 0000000000000000000000000000000000000000..f44e906d7a1804a51a40958cf5d215fc430eaf87
--- /dev/null
+++ b/wiki/wiki.2007.sort.raw.csv.zst.xaa
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2d2023ecdee5534dfa6c55ec798564948eefc2c320cf711f3846e52899589b3e
+size 50000000000
diff --git a/wiki/wiki.2007.sort.raw.csv.zst.xab b/wiki/wiki.2007.sort.raw.csv.zst.xab
new file mode 100644
index 0000000000000000000000000000000000000000..d8d2a0aa8c53e50d0f7afcda3839c0254561b3a1
--- /dev/null
+++ b/wiki/wiki.2007.sort.raw.csv.zst.xab
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f12e024c401bbb011bd007b280040b6e90516b52f33eca46ab4d864a99ec80a7
+size 12918263091